Fix auth form validation and login redirect issue

[abdul-wahab619]

This PR improves the authentication flow by adding proper validation to auth forms and fixing a critical login bug.

What’s changed

• Added client-side validation for authentication forms to improve UX and prevent invalid submissions.
• Fixed a weird issue where clicking Login redirected users to the home page without completing authentication.
• Improved overall reliability of the auth flow.

Bug Fix

• Resolved unintended redirect to home on login click without successful authentication.

Related Issue

Closes #74