feature suggestion - magic button to make a user an OSR admin

[alexmitrani]

This is a @climu idea.

@climu commented: At the moment the process is
Django admin: go to your profile see all groups existing admin is in. Do same for new member
Then discord too.
And gmail.
Similarly, maybe there should be a button to reverse the process when someone leaves the team (this last bit is my contribution)

Thanks!