[Feat] Adding a cross-icon on login/signup page

[Athaxv]

Is there an existing issue for this?

• I have searched the existing issues

Feature Description

I want to add a cross-icon on login and register page to close the window.

please assign this task to me under gssoc-ext and hactoberfest

Use Case

It will be used in closing the particular window which will help users to close it rather than being redirected to any other page

Benefits

No response

Priority

High

Record

• I agree to follow this project's Code of Conduct
• I'm a GSSOC contributor
• I want to work on this issue
• I'm willing to provide further clarification or assistance if needed.