Revert merge request states renaming
Replaced:
- "Accepted" with "Merged"
- "Rejected" with "Closed"
This is cherry-pick of !844 (closed) but for 7-12-stable. For 7.12.1
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Replaced:
This is cherry-pick of !844 (closed) but for 7-12-stable. For 7.12.1