Add User Password Reset Functionality

[Laxmi2707]

Description

Allow users to reset their password if they forget it by sending a password reset link to their email.

Steps to Implement

1. Implement a POST /auth/forgot-password endpoint that sends a reset token to the user's email.
2. Implement a PUT /auth/reset-password/:token endpoint to update the user's password.
3. Use bcryptjs to hash the new password before saving it to the database.

Expected Outcome

Users can reset their passwords securely.