Migrate Authentication from auth.js to lucia

[Michael-Obele]

Description:
We need to switch from auth.js to lucia to enhance security, improve performance, and benefit from better support.

Tasks:

1. Review Documentation: Check lucia docs for setup and features.
2. Update Dependencies: Remove auth.js and add lucia.
3. Refactor Code: Replace authentication logic with lucia.
4. Testing: Ensure all auth functions work correctly with lucia.
5. Update Docs: Revise authentication-related documentation.
6. Deploy: Launch the updated app and monitor for issues.