fix: use singular category labels in toast

src/components/item/DatasetCreateForm/DatasetCreateForm.tsx

 import { useRouter } from 'next/router'
 import { useQueryClient } from 'react-query'
 import type { DatasetCore, DatasetDto } from '@/api/sshoc'
-import { useCreateDataset, useGetItemCategories } from '@/api/sshoc'
+import { useCreateDataset } from '@/api/sshoc'
 import type { ItemCategory } from '@/api/sshoc/types'
-
 import { ActorsFormSection } from '@/components/item/ActorsFormSection/ActorsFormSection'
 import { DateFormSection } from '@/components/item/DateFormSection/DateFormSection'
 import { MainFormSection } from '@/components/item/MainFormSection/MainFormSection'
@@ -15,6 +14,7 @@ import { useToast } from '@/elements/Toast/useToast'
 import { validate } from '@/lib/sshoc/validate'
 import { useAuth } from '@/modules/auth/AuthContext'
 import { Form } from '@/modules/form/Form'
+import { getSingularItemCategoryLabel } from '@/utils/getSingularItemCategoryLabel'
 
 export type ItemFormValues = DatasetCore
 
@@ -29,8 +29,7 @@ export interface ItemFormProps<T> {
 export function ItemForm(props: ItemFormProps<ItemFormValues>): JSX.Element {
   const { category, initialValues } = props
 
-  const categories = useGetItemCategories()
-  const categoryLabel = categories.data?.[category] ?? category
+  const categoryLabel = getSingularItemCategoryLabel(category)
 
   const useItemMutation = useCreateDataset
 

src/components/item/DatasetEditForm/DatasetEditForm.tsx

 import { useRouter } from 'next/router'
 import { useQueryClient } from 'react-query'
 import type { DatasetCore, DatasetDto } from '@/api/sshoc'
-import { useGetItemCategories, useUpdateDataset } from '@/api/sshoc'
+import { useUpdateDataset } from '@/api/sshoc'
 import type { ItemCategory } from '@/api/sshoc/types'
-
 import { ActorsFormSection } from '@/components/item/ActorsFormSection/ActorsFormSection'
 import { DateFormSection } from '@/components/item/DateFormSection/DateFormSection'
 import { MainFormSection } from '@/components/item/MainFormSection/MainFormSection'
@@ -15,6 +14,7 @@ import { useToast } from '@/elements/Toast/useToast'
 import { validate } from '@/lib/sshoc/validate'
 import { useAuth } from '@/modules/auth/AuthContext'
 import { Form } from '@/modules/form/Form'
+import { getSingularItemCategoryLabel } from '@/utils/getSingularItemCategoryLabel'
 
 export type ItemFormValues = DatasetCore
 
@@ -31,8 +31,7 @@ export interface ItemFormProps<T> {
 export function ItemForm(props: ItemFormProps<ItemFormValues>): JSX.Element {
   const { id, category, initialValues } = props
 
-  const categories = useGetItemCategories()
-  const categoryLabel = categories.data?.[category] ?? category
+  const categoryLabel = getSingularItemCategoryLabel(category)
 
   const useItemMutation = useUpdateDataset
 

src/components/item/PublicationCreateForm/PublicationCreateForm.tsx

 import { useRouter } from 'next/router'
 import { useQueryClient } from 'react-query'
 import type { PublicationCore, PublicationDto } from '@/api/sshoc'
-import { useGetItemCategories, useCreatePublication } from '@/api/sshoc'
+import { useCreatePublication } from '@/api/sshoc'
 import type { ItemCategory } from '@/api/sshoc/types'
-
 import { ActorsFormSection } from '@/components/item/ActorsFormSection/ActorsFormSection'
 import { DateFormSection } from '@/components/item/DateFormSection/DateFormSection'
 import { MainFormSection } from '@/components/item/MainFormSection/MainFormSection'
@@ -15,6 +14,7 @@ import { useToast } from '@/elements/Toast/useToast'
 import { validate } from '@/lib/sshoc/validate'
 import { useAuth } from '@/modules/auth/AuthContext'
 import { Form } from '@/modules/form/Form'
+import { getSingularItemCategoryLabel } from '@/utils/getSingularItemCategoryLabel'
 
 export type ItemFormValues = PublicationCore
 
@@ -29,8 +29,7 @@ export interface ItemFormProps<T> {
 export function ItemForm(props: ItemFormProps<ItemFormValues>): JSX.Element {
   const { category, initialValues } = props
 
-  const categories = useGetItemCategories()
-  const categoryLabel = categories.data?.[category] ?? category
+  const categoryLabel = getSingularItemCategoryLabel(category)
 
   const useItemMutation = useCreatePublication
 

src/components/item/PublicationEditForm/PublicationEditForm.tsx

 import { useRouter } from 'next/router'
 import { useQueryClient } from 'react-query'
 import type { PublicationCore, PublicationDto } from '@/api/sshoc'
-import { useUpdatePublication, useGetItemCategories } from '@/api/sshoc'
+import { useUpdatePublication } from '@/api/sshoc'
 import type { ItemCategory } from '@/api/sshoc/types'
-
 import { ActorsFormSection } from '@/components/item/ActorsFormSection/ActorsFormSection'
 import { DateFormSection } from '@/components/item/DateFormSection/DateFormSection'
 import { MainFormSection } from '@/components/item/MainFormSection/MainFormSection'
@@ -15,6 +14,7 @@ import { useToast } from '@/elements/Toast/useToast'
 import { validate } from '@/lib/sshoc/validate'
 import { useAuth } from '@/modules/auth/AuthContext'
 import { Form } from '@/modules/form/Form'
+import { getSingularItemCategoryLabel } from '@/utils/getSingularItemCategoryLabel'
 
 export type ItemFormValues = PublicationCore
 
@@ -31,8 +31,7 @@ export interface ItemFormProps<T> {
 export function ItemForm(props: ItemFormProps<ItemFormValues>): JSX.Element {
   const { id, category, initialValues } = props
 
-  const categories = useGetItemCategories()
-  const categoryLabel = categories.data?.[category] ?? category
+  const categoryLabel = getSingularItemCategoryLabel(category)
 
   const useItemMutation = useUpdatePublication
 

src/components/item/ToolCreateForm/ToolCreateForm.tsx

 import { useRouter } from 'next/router'
 import { useQueryClient } from 'react-query'
 import type { ToolCore, ToolDto } from '@/api/sshoc'
-import { useCreateTool, useGetItemCategories } from '@/api/sshoc'
+import { useCreateTool } from '@/api/sshoc'
 import type { ItemCategory } from '@/api/sshoc/types'
-
 import { ActorsFormSection } from '@/components/item/ActorsFormSection/ActorsFormSection'
 import { MainFormSection } from '@/components/item/MainFormSection/MainFormSection'
 import { PropertiesFormSection } from '@/components/item/PropertiesFormSection/PropertiesFormSection'
@@ -14,6 +13,7 @@ import { useToast } from '@/elements/Toast/useToast'
 import { validate } from '@/lib/sshoc/validate'
 import { useAuth } from '@/modules/auth/AuthContext'
 import { Form } from '@/modules/form/Form'
+import { getSingularItemCategoryLabel } from '@/utils/getSingularItemCategoryLabel'
 
 export type ItemFormValues = ToolCore
 
@@ -28,8 +28,7 @@ export interface ItemFormProps<T> {
 export function ItemForm(props: ItemFormProps<ItemFormValues>): JSX.Element {
   const { category, initialValues } = props
 
-  const categories = useGetItemCategories()
-  const categoryLabel = categories.data?.[category] ?? category
+  const categoryLabel = getSingularItemCategoryLabel(category)
 
   const useItemMutation = useCreateTool
 

src/components/item/ToolEditForm/ToolEditForm.tsx

 import { useRouter } from 'next/router'
 import { useQueryClient } from 'react-query'
 import type { ToolCore, ToolDto } from '@/api/sshoc'
-import { useUpdateTool, useGetItemCategories } from '@/api/sshoc'
+import { useUpdateTool } from '@/api/sshoc'
 import type { ItemCategory } from '@/api/sshoc/types'
-
 import { ActorsFormSection } from '@/components/item/ActorsFormSection/ActorsFormSection'
 import { MainFormSection } from '@/components/item/MainFormSection/MainFormSection'
 import { PropertiesFormSection } from '@/components/item/PropertiesFormSection/PropertiesFormSection'
@@ -14,6 +13,7 @@ import { useToast } from '@/elements/Toast/useToast'
 import { validate } from '@/lib/sshoc/validate'
 import { useAuth } from '@/modules/auth/AuthContext'
 import { Form } from '@/modules/form/Form'
+import { getSingularItemCategoryLabel } from '@/utils/getSingularItemCategoryLabel'
 
 export type ItemFormValues = ToolCore
 
@@ -30,8 +30,7 @@ export interface ItemFormProps<T> {
 export function ItemForm(props: ItemFormProps<ItemFormValues>): JSX.Element {
   const { id, category, initialValues } = props
 
-  const categories = useGetItemCategories()
-  const categoryLabel = categories.data?.[category] ?? category
+  const categoryLabel = getSingularItemCategoryLabel(category)
 
   const useItemMutation = useUpdateTool
 

src/components/item/TrainingMaterialCreateForm/TrainingMaterialCreateForm.tsx

 import { useRouter } from 'next/router'
 import { useQueryClient } from 'react-query'
 import type { TrainingMaterialCore, TrainingMaterialDto } from '@/api/sshoc'
-import { useCreateTrainingMaterial, useGetItemCategories } from '@/api/sshoc'
+import { useCreateTrainingMaterial } from '@/api/sshoc'
 import type { ItemCategory } from '@/api/sshoc/types'
-
 import { ActorsFormSection } from '@/components/item/ActorsFormSection/ActorsFormSection'
 import { MainFormSection } from '@/components/item/MainFormSection/MainFormSection'
 import { PropertiesFormSection } from '@/components/item/PropertiesFormSection/PropertiesFormSection'
@@ -14,6 +13,7 @@ import { useToast } from '@/elements/Toast/useToast'
 import { validate } from '@/lib/sshoc/validate'
 import { useAuth } from '@/modules/auth/AuthContext'
 import { Form } from '@/modules/form/Form'
+import { getSingularItemCategoryLabel } from '@/utils/getSingularItemCategoryLabel'
 
 export type ItemFormValues = TrainingMaterialCore
 
@@ -28,8 +28,7 @@ export interface ItemFormProps<T> {
 export function ItemForm(props: ItemFormProps<ItemFormValues>): JSX.Element {
   const { category, initialValues } = props
 
-  const categories = useGetItemCategories()
-  const categoryLabel = categories.data?.[category] ?? category
+  const categoryLabel = getSingularItemCategoryLabel(category)
 
   const useItemMutation = useCreateTrainingMaterial
 

src/components/item/TrainingMaterialEditForm/TrainingMaterialEditForm.tsx

 import { useRouter } from 'next/router'
 import { useQueryClient } from 'react-query'
 import type { TrainingMaterialCore, TrainingMaterialDto } from '@/api/sshoc'
-import { useUpdateTrainingMaterial, useGetItemCategories } from '@/api/sshoc'
+import { useUpdateTrainingMaterial } from '@/api/sshoc'
 import type { ItemCategory } from '@/api/sshoc/types'
-
 import { ActorsFormSection } from '@/components/item/ActorsFormSection/ActorsFormSection'
 import { MainFormSection } from '@/components/item/MainFormSection/MainFormSection'
 import { PropertiesFormSection } from '@/components/item/PropertiesFormSection/PropertiesFormSection'
@@ -14,6 +13,7 @@ import { useToast } from '@/elements/Toast/useToast'
 import { validate } from '@/lib/sshoc/validate'
 import { useAuth } from '@/modules/auth/AuthContext'
 import { Form } from '@/modules/form/Form'
+import { getSingularItemCategoryLabel } from '@/utils/getSingularItemCategoryLabel'
 
 export type ItemFormValues = TrainingMaterialCore
 
@@ -30,8 +30,7 @@ export interface ItemFormProps<T> {
 export function ItemForm(props: ItemFormProps<ItemFormValues>): JSX.Element {
   const { id, category, initialValues } = props
 
-  const categories = useGetItemCategories()
-  const categoryLabel = categories.data?.[category] ?? category
+  const categoryLabel = getSingularItemCategoryLabel(category)
 
   const useItemMutation = useUpdateTrainingMaterial
 

src/components/item/WorkflowCreateForm/WorkflowCreateForm.tsx

 import { useRouter } from 'next/router'
 import { useQueryClient } from 'react-query'
 import type { WorkflowCore, WorkflowDto } from '@/api/sshoc'
-import { useCreateWorkflow, useGetItemCategories } from '@/api/sshoc'
+import { useCreateWorkflow } from '@/api/sshoc'
 import type { ItemCategory } from '@/api/sshoc/types'
-
 import { ActorsFormSection } from '@/components/item/ActorsFormSection/ActorsFormSection'
 import { MainFormSection } from '@/components/item/MainFormSection/MainFormSection'
 import { PropertiesFormSection } from '@/components/item/PropertiesFormSection/PropertiesFormSection'
@@ -14,6 +13,7 @@ import { useToast } from '@/elements/Toast/useToast'
 import { validate } from '@/lib/sshoc/validate'
 import { useAuth } from '@/modules/auth/AuthContext'
 import { Form } from '@/modules/form/Form'
+import { getSingularItemCategoryLabel } from '@/utils/getSingularItemCategoryLabel'
 
 export type ItemFormValues = WorkflowCore
 
@@ -28,8 +28,7 @@ export interface ItemFormProps<T> {
 export function ItemForm(props: ItemFormProps<ItemFormValues>): JSX.Element {
   const { category, initialValues } = props
 
-  const categories = useGetItemCategories()
-  const categoryLabel = categories.data?.[category] ?? category
+  const categoryLabel = getSingularItemCategoryLabel(category)
 
   const useItemMutation = useCreateWorkflow
 

src/components/item/WorkflowEditForm/WorkflowEditForm.tsx

 import { useRouter } from 'next/router'
 import { useQueryClient } from 'react-query'
 import type { WorkflowCore, WorkflowDto } from '@/api/sshoc'
-import { useUpdateWorkflow, useGetItemCategories } from '@/api/sshoc'
+import { useUpdateWorkflow } from '@/api/sshoc'
 import type { ItemCategory } from '@/api/sshoc/types'
-
 import { ActorsFormSection } from '@/components/item/ActorsFormSection/ActorsFormSection'
 import { MainFormSection } from '@/components/item/MainFormSection/MainFormSection'
 import { PropertiesFormSection } from '@/components/item/PropertiesFormSection/PropertiesFormSection'
@@ -14,6 +13,7 @@ import { useToast } from '@/elements/Toast/useToast'
 import { validate } from '@/lib/sshoc/validate'
 import { useAuth } from '@/modules/auth/AuthContext'
 import { Form } from '@/modules/form/Form'
+import { getSingularItemCategoryLabel } from '@/utils/getSingularItemCategoryLabel'
 
 export type ItemFormValues = WorkflowCore
 
@@ -30,8 +30,7 @@ export interface ItemFormProps<T> {
 export function ItemForm(props: ItemFormProps<ItemFormValues>): JSX.Element {
   const { id, category, initialValues } = props
 
-  const categories = useGetItemCategories()
-  const categoryLabel = categories.data?.[category] ?? category
+  const categoryLabel = getSingularItemCategoryLabel(category)
 
   const useItemMutation = useUpdateWorkflow
 

src/modules/page/PageHeader.tsx

@@ -481,9 +481,7 @@ function CreateItemsMenu() {
                   <Link href={{ pathname: `/${category}/create` }}>
                     <a className="transition-colors duration-150 hover:text-secondary-500">
                       Create{' '}
-                      {getSingularItemCategoryLabel(
-                        category as Exclude<ItemCategory, 'step'>,
-                      )}
+                      {getSingularItemCategoryLabel(category as ItemCategory)}
                     </a>
                   </Link>
                 </li>

src/utils/getSingularItemCategoryLabel.ts

-import type { ItemCategory as ItemCategoryWithStep } from '@/api/sshoc/types'
-
-type ItemCategory = Exclude<ItemCategoryWithStep, 'step'>
+import type { ItemCategory } from '@/api/sshoc/types'
 
 /**
  * Returns item category in singular.
@@ -11,6 +9,7 @@ export function getSingularItemCategoryLabel(category: ItemCategory): string {
   const labels = {
     dataset: 'Dataset',
     publication: 'Publication',
+    step: 'Step',
     'tool-or-service': 'Tool or service',
     'training-material': 'Training material',
     workflow: 'Workflow',