What does this MR do and why?
This moves the sidebar when viewing merge requests from being attached to the right side of the screen and being available on all tabs, to being within the overview tabs content and only visible on the overview tab.
Screenshots or screen recordings
How to set up and validate locally
moved_mr_sidebar feature flag
Numbered steps to set up and validate the change are strongly suggested.
MR acceptance checklist
This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.
I have evaluated the MR acceptance checklist for this MR.