Sidebar fixes
Fixes #13215 (closed)
- when editing a dropdown, but not changing anything you end up in an ugly state
- the hover-over state for the subscribe and other buttons are veeery subtle
- the collapse button needs some sort of hover-over state
- the reference gets shortened. It always got shortened. Not an issue with this in particular.
- the minimized sidebar is not functional. The copy button doesn't do anything
- looks all funky in safari (not for me)