When a user does not have an account yet and SMTP was disabled it would
set the UserOrg status still to Accepted, though that would make it
possible to verify the user by the Org Admin's.
This would fail, since the user didn't actually crated his account, and
therefor no PublicKey existed.
This PR fixes this behaviour by checking if the password is empty and if
so, puts the user to an `Invited` state instead of `Accepted`.
Fixes#3737
Merging a PR from @Kurnihil into the already rebased branch.
Made some small changes to make it work with newer changes.
Some finetuning is probably still needed.
Co-authored-by: Daniele Andrei <daniele.andrei@geo-satis.com>
Co-authored-by: Kurnihil