API - Fix user profile field empty

[fanden]

When creating a new profile for a user, the ´profile_id´ field in the users table does not get set

• Update profileController to set the profile field when creating a profile

Acceptance criteria:

• User object includes profile object when getting ´/users/{id}´

[magnusgit1]

the profile_id field in user is now removed, as it is the "owner" of the relationship between a user and a profile, so the foreign-key is only visible in the profile-table. It doesnt change anything, as you can access a users profile (user.getProfile()) even though its not visible in the table. Had to do this due to conflicts with cascade-deletion. so it says null just cause ur db isnt cleaned basically @fanden