fix: add a 'user_details' for every user 🖊️

[wflore19]

Description

there are users with a 'user_details' record, every user should have one on account creation

Acceptance Criteria

• [x] Create a 'user_details' record for user on account creation
• [ ] Add a 'user_details' record for every user without one

Additional Context

Add any other context about the issue here.