What does this MR do?
Hide pipeline schedule 'take ownership' button for current owner of pipeline schedule
Are there points in the code the reviewer needs to double check?
Why was this MR needed?
If you're already the owner, you don't need to see the take ownership button
Screenshots (if relevant)
Does this MR meet the acceptance criteria?
Changelog entry added, if necessary
Added for this feature/bug
All builds are passing
Conform by the merge request performance guides
Conform by the style guides
Branch has no merge conflicts with
master(if it does - rebase it please)
Squashed related commits together
What are the relevant issue numbers?
Closes #35285 (moved)