What does this MR do?
Adds ability to use translations for the Project Wiki pages
Are there points in the code the reviewer needs to double check?
Why was this MR needed?
This MR is part of an on-going effort to translate GitLab.
Screenshots (if relevant)
Does this MR meet the acceptance criteria?
[ ] Changelog entry added, if necessary [ ] Documentation created/updated [ ] API support added
Tests added for this feature/bug
Has been reviewed by UX
Has been reviewed by Frontend
Has been reviewed by Backend [ ] Has been reviewed by Database
Conform by the merge request performance guides
Conform by the style guides
Squashed related commits together