Community Wishlist Survey 2022/Implement $wgRestrictionLevels in ManageWiki

Proposed by Hypercane

Proposal summary: This addition I believe would cut down the amount of Phabricator/GitHub pull requests that are related to this.

Full proposal: Per my summary of this wishlist, I believe this should eventually be implemented as I can see a great use case for this. There are lots of Phabricator/GitHub requests about this topic and I believe eventually adding this would be a benefit to that. I'm not sure what it would take to implement this in a technical sense, but I'm sure it could be done. Also, please let me know what you think about this. Thank you.