Only show the sidebar scroll bars if the user can scroll
What does this MR do?
Only show the sidebar scroll bars if the sidebar actually has content that can be scrolled.
What are the relevant issue numbers?
Closes #37972 (closed)
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Only show the sidebar scroll bars if the sidebar actually has content that can be scrolled.
Closes #37972 (closed)