Started with cleanup of unused variables

...tected)/(generic_layout)/account/groups/editGroupForm.tsx

...k/app/(protected)/(generic_layout)/account/tools/page.tsx

...(protected)/(generic_layout)/books/[id]/edit/api/page.tsx

...ic_layout)/books/[id]/edit/other/backgroundTypeEditor.tsx

...eric_layout)/books/[id]/edit/permissions/accessEditor.tsx

...pp/api/books/[id]/(edit)/collaborators/add_group/route.ts

apps/fullstack/app/debug/playground/dates/page.tsx

apps/fullstack/app/debug/playground/toolbar/page.tsx

apps/fullstack/app/debug/render/client.tsx

apps/fullstack/app/docs/page.tsx

apps/fullstack/components/books/browser/forms/CreateBook.tsx

apps/fullstack/components/editor/context.tsx

apps/fullstack/components/editor/old/editor.module.scss

apps/fullstack/components/editor/tools/common/overlay.tsx

...k/components/editor/tools/imageEditor/cut/cut.module.scss

...llstack/components/editor/tools/imageEditor/cut/index.tsx

...tack/components/editor/tools/imageEditor/resize/index.tsx

apps/fullstack/components/editor/tools/interaction/index.tsx

apps/fullstack/components/editor/tools/text/context.tsx

apps/fullstack/components/editor/viewer/page.tsx