Enhancement for ability to add all users to a group

Right now the groups are imported from the source (ex. LDAP) based on some mappings. It would be useful to have each authentik user be a member of a default group implicitly in addition to whatever is imported. If this is not desirable then maybe a way to mass add users to a group would suffice. Or perhaps both, because the implicit default group could remain immutable whereas some users (non real user accounts etc) can be removed from the group.

( Right now this can be handled by adding a user-write to a stage. I was able to add it to the password-change action but not to the login action for some reason. Though this is not ideal when we don't want ALL users but do want most of them to be in the group. )