108 implement preauthorize locally in usercontroller

[Vurpas]

• Added preAuth to updateUser controller.
• Refactored the controller to go thorugh a DTO that restricts the user to only be able to update firstName, lastName, phoneNumber, adress_street, adress_zip and adress_city.
• Added if-statement to check if the userId exists, if not it gives a proper response. (userId not found)
• Refactored responses for adding / removing games from wishlist to a generic message.

Test in postman

• git fetch
• git checkout 108-implement-preauthorize-locally-in-usercontroller

Test all the endpoints, preferably with user logged in, and then admin logged in.