Revamp User Controller

[Hemanthr1]

Issue Description

Refactor the User Controller by removing the use of authentication.getAuthenticated() and implement authentication handling using try-catch blocks.

Expected Behavior

The User Controller should robustly manage authentication errors through proper exception handling, enhancing overall stability.

Actual Behavior

The current implementation relies on authentication.getAuthenticated(), which may not adequately handle exceptions.

[JishnuGoyal]

Hi @Hemanthr1 , I would like to work on this issue. Could you please assign this to me?

[ironmark3]

@JishnuGoyal assigned!

[JishnuGoyal]

Thanks for assigning me this @ironmark3 . I have linked a PR and waiting for a review :)