no issue
- reset logic was incorrect meaning that if you focused a twitter/facebook URL field then moved to a different field without inputting anything an error would be thrown from trying to use `.match()` on `null`
refs TryGhost/Team#1826
- allows staff users to manage their email alert settings behind the flag
- only owner and admin users are able to toggle their email alerts
refs https://github.com/TryGhost/Ghost/issues/15008
- Backup process had a slim benefit to keep around. Without it the removal process is much smoother.
- The backup still happens on the server side if it's absolutely needed at some point in the future