Fix Auth migrations and auth controller

[erenfn]

• change updated_at to updatedAt in create_users)table migration
• Change { User }to User in auth controller imports.

These were causing problems when I tried to call the auth endpoints. The problems are gone with these fixes.

[uparkalau]

The issue resolved into Issue 63: fixed issue 63 and added createdBy to popup table #64

[uparkalau]

Closed and moved to #64