Added Error Handling on login and signup page.

[HrxSrv]

Issue:
When a user encounters an error on the signup or login page, the signup button continues loading, and the reason for the error is not displayed.

Fix:

1. Added error messages tailored to specific issues, such as invalid password, email, insufficient password length, or mismatched credentials.
2. Input fields are now cleared upon encountering a specific error, and the loading indicator is stopped, making the signup/signin button usable.

[HrxSrv]

Fix

[Priyansh61]

@HrxSrv Can you post a clip showing the user journey ?