Remove UserContext

[hks1444]

🧱 Description

User Context causes errors and complicates thing we need another less error prone method to get user information.

To be reviewed by: @hks1444

📋 Acceptance Criteria

• [x] Determine a better user information retrieval mechanism.
• [x] Implement that mechanism. (Create a Auth route with authloader encompassing all the other routes)

[umitcan07]

We can create a shadow route called auth which encompasses all the other routes and its loader retrieves the user data

[hks1444]

Good idea. We should implement it.