Feat: Open mailbox.

[abhiperfect]

Implementing this feature allows users to directly open their default email client when clicking on a "Mail" link, streamlining the process of composing emails and enhancing user experience.

[abhiperfect]

I would like to work on this issue.

[Agarwalvidu]

This issue has been already solved. For the same reason I am closing this issue. Thank you for collaborating.