Handling of Access Token through Http cookie

[Avdhesh-Varshney]

Refrence: #27 (comment)

Storing the access token in sessionStorage may expose it to XSS attacks. Consider using httpOnly cookies or a more secure storage mechanism for sensitive authentication tokens.

Here Need some files like,

1. Handling of cookie through BE middleware which should able to read the cookie and decode.
2. Update the registerUser api in BE to send the access_token in cookie.
3. Also need to handle the cookie in FE in app.tsx file.

[archa8]

Will try to work on this issue