This commit is for a frequently requested task on meta so that only 1
API call is needed instead of 3!
In order to create a user via the api and not have them receive an
activation email you can pass in the `active=true` flag. This prevents
sending an email, but it is only half of the solution and puts the db in
a weird state where it has an active user with an unconfirmed email.
This commit fixes that and ensures that if the `active=true` flag is set
the user's email is also marked as confirmed.
This change only applies to admins using the API.
Related topics on meta:
- https://meta.discourse.org/t/-/68663
- https://meta.discourse.org/t/-/33133
- https://meta.discourse.org/t/-/36133