* Simplify `redbot-setup backup` thanks to Click 8.0

* Add some of the missing type hints

* Fix unnecessary new lines in `redbot-setup` and `redbot-setup delete`

* Add default value for storage backend

* Add non-interactive mode to `redbot-setup`
(cherry picked from commit 8cc004f7)

Co-authored-by: jack1142 <6032823+jack1142@users.noreply.github.com>

Co-authored-by: jack1142 <6032823+jack1142@users.noreply.github.com>