Fixes the spacing around diff discussion buttons
What does this MR do?
Adds margin to the submit button in discussions on mobile
Screenshots (if relevant)
What are the relevant issue numbers?
Closes #31102 (closed)
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Adds margin to the submit button in discussions on mobile
Closes #31102 (closed)