Completed admin views

Corrected model method return values

ref-test/app/models/user.py

@@ -99,7 +99,7 @@ class User(UserMixin, db.Model):
         return True, message
 
     def update(self, password:str=None, email:str=None, notify:bool=False):
-        if not password and not email: return False, jsonify({'error': 'There were no changes requested.'})
+        if not password and not email: return False, 'There were no changes requested.'
         if password: self.set_password(password)
         if email: self.set_email(email)
         db.session.commit()