Add "New wiki page" to super topbar
What does this MR do and why?
Fixes #591976 (closed) by adding "New wiki page" to the super topbar's 'Create' menu, as applicable.
Screenshots or screen recordings
How to set up and validate locally
Check out the branch, go to any page in a project with the wiki enabled (and you have access), and check the menu item appears and goes to the right place.
Check it doesn't appear where you don't have access to create a wiki page, or where the wiki is disabled.
MR acceptance checklist
Evaluate this MR against the MR acceptance checklist. It helps you analyze changes to reduce risks in quality, performance, reliability, security, and maintainability.
