Implement User Authentication (Login, Signup, etc.)

[sufiankhan-dev]

Develop a secure authentication system to allow users to create accounts and log in to DevUnity.

Requirements:

1. Create signup and login forms with fields for email, username, and password.
2. Include form validation for input fields.
3. Implement password hashing and secure storage.
4. Use JWT or another token-based system to manage user sessions.
5. Create a “Forgot Password” functionality.