Update server.py

Author: alexisluque

01-Login/server.py

@@ -81,7 +81,7 @@ def callback_handling():
  session[constants.JWT_PAYLOAD] = payload
 
  session[constants.PROFILE_KEY] = {
- 'user_id': payload['user_id'],
+ 'user_id': payload['sub'],
  'email': payload['email'],
  'picture': payload['picture']
  }