Fixhancement: restore search highlighting and add for built-in viewer (#8885)

src-ui/src/app/services/rest/document.service.spec.ts

@@ -276,7 +276,7 @@ describe(`DocumentService`, () => {
     service.searchQuery = searchQuery
     let url = service.getPreviewUrl(documents[0].id)
     expect(url).toEqual(
-      `${environment.apiBaseUrl}${endpoint}/${documents[0].id}/preview/#search="${searchQuery}"`
+      `${environment.apiBaseUrl}${endpoint}/${documents[0].id}/preview/#search=%22${searchQuery}%22`
     )
   })