Removes extra system note for threads (and collapse functionality)
Why? We don't actually show the Reply option here anyway; you can only get to this state if you select Start a thread instead of Comment. And the collapsed state isn't persisted.
Fix mobile styles
On mobile, hides Edit icon button and adds Edit comment option in actions dropdown
What does this MR not do?
Convert the notes to Vue
Screenshots or screen recordings
Before
After
How to set up and validate locally
Check areas that use our legacy notes:
Snippet
Commit
Are there any others? I thought wiki used them too but I don't actually see a way to comment anywhere on wikis
