[Draft] Allow super admin to reset passwords for community admin users

[DuldR]

Fixes #802

Related PR: https://github.com/Terrastories/terrastories/pull/905

I wasn't sure on how powerful we want a super admin to be, so I've essentially allowed them the max permissions for this PR. (More discussion: https://rubyforgood.slack.com/archives/CAH9XQX2A/p1675975728042129?thread_ts=1675971543.153629&cid=CAH9XQX2A)

Updated this PR to only allow a super_admin to update a communities admin password.

Community User Page

Super Admin Reset Password Page

Admin Reset Password Page

[rudokemper]

Just saw this again! Wondering what we can do to finish this PR? @DuldR are you still able to work on it, or do you want to leave it here for someone else to finish the remaining tasks as indicated by @lauramosher?

[DuldR]

@rudokemper Yes sir, sorry, I can't finish it up. If anyone else wanted to take a whack at it, that'd be great.