Allow login via Google Gmail

[Amanc77]

Add an option in the footer for users to log in using their Google Gmail account. This feature will make the sign-in process faster and more convenient for users who prefer Google authentication.

Expected Behavior

• A “Login with Google” button should appear in the footer.

• Clicking the button should redirect users to the Google OAuth login flow.

• After successful login, users should be redirected back to the app with their Google profile details.

• The button design should match the current footer style.

Additional Notes

• Use Google OAuth 2.0 or Firebase Authentication for implementation.

• Ensure security best practices are followed for token handling and user sessions.