Hides merge request button on branches page
What does this MR do?
If user does not have the correct permissions, the merge request button is hidden
Screenshots (if relevant)
What are the relevant issue numbers?
Closes #21805 (closed)
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
If user does not have the correct permissions, the merge request button is hidden
Closes #21805 (closed)