Show consistent user data (UI and Backend)

[HKayed]

As a user, I'd like to see consistent data all the time, so if I'm supposed to see more than just the name and the email, it should be properly displayed on the screen

Acceptance Criteria

• Add the location, department and working position information to the backend
• Add the location, department and working position information to the backend call response or create another endpoint for retrieval of this data
• In the frontend side, add the information mentioned above to each employee