fix: manifest URL comparison

This will fix the finding of manifest indexes at several places in the app. Problem was that setting the item URL at the route caused URL encoding, so it was different from what is potentially returned from the API.

Entrypoint: https://dev.gfl.sub.uni-goettingen.de/tido/gfl/Z_1823-08-07_z/manifest.json

fix #403 (closed)

src/store/contents/getters.js

@@ -37,17 +37,15 @@ export const panels = (state) => state.panels;
 export const sequenceIndex = (state) => state.sequenceIndex;
 
 export const selectedItemIndex = (state) => {
-  const nodelabel = state.itemUrl;
-  let idx = 0;
-  state.itemUrls.forEach((item, index) => {
-    if (item === nodelabel) {
-      idx = index;
-    }
-  });
-  return idx;
+  const selectedItemUrl = encodeURI(decodeURI(state.itemUrl));
+  const index = state.itemUrls.findIndex((item) => encodeURI(decodeURI(item)) === selectedItemUrl);
+  return index > -1 ? index : 0;
 };
 
-export const selectedManifest = (state) => state.manifests.find((manifest) => manifest.sequence.find((manifestItem) => manifestItem.id === state.itemUrl));
+export const selectedManifest = (state) => state.manifests.find((manifest) => {
+  const selectedItemUrl = encodeURI(decodeURI(state.itemUrl));
+  return manifest.sequence.find((manifestItem) => encodeURI(decodeURI(manifestItem.id)) === selectedItemUrl);
+});
 
 export const selectedSequenceIndex = (state, getters) => {
   const item = getters.selectedManifest;