This PR removes the feedback button from the status bar, as Nathan and I
discussed. We discussed the fact that we likely no longer need to take
up valuable screen real estate for this, with where Zed as at now.
This PR also moves the `Share Feedback...` collab menu item to the
`Help` menu, as that's where VS Code puts their action to send in-app
feedback (which might help with future discoverability) and renames it
to `Give Feedback...`, to make it consistent with the name of the
command palette action.
Release Notes:
- Removed the feedback button from the status bar.
a03fecafbb