If there are no 'projectWikiValueObjects', return early

Tackling it now in its parent issue!

Apparently the JS errors have nothing to do with the list being empty, as they also appear when there are entries in the list. They seem to be connected to ListJS as it stopped working.
I will both fix the issue and add the proposed disclaimer text, don't worry!

Disclaimer message has been added! No need to escape early, since these JS errors were not related to the list being empty (they occur if a required library for ListJS is not installed) and an empty list throws no errors at all now.
Please review in the 1.x branch within the parent issue!

Fixed in the parent task, well done!

Note, that I meant to return early, so that the search bar isn't rendered at all, when there are no entries in the project wiki. This is more performant, since we do not need to attach the library, and looks a bit more polished. Setting back to needs work and removing the parent issue.

Fixed in 📌 General routing cleanup and other miscellaneous changes Fixed .