Even more precise docs

The commit changing this line before was wrong, the docs says it all.

docker-app/qfieldcloud/authentication/auth_backends.py

@@ -30,7 +30,7 @@ def get_user(self, user_id):
         """Almost the same as `contrib.auth.backends.ModelBackend`, but not using the default manager, but the normal `objects` manager
 
         Returns:
-            Person | Organization | None: In theory it can return any of this three types, however it will always be a Person or None
+            Person | Organization | Team | None: In theory it can return any of these types, however it will always be a `Person` or `None`
         """
         UserModel = get_user_model()