UI[web]:Solve padding issue with the login/signup button in dropdown (#2626)
UI[web]:Solve padding issue with the login/signup button in dropdown (#2626)

The LinkButton used for Login/Signup and Logout button used the
CSS rule "height: auto", for --md-up whereas most of the UI
transition, if not all happen at --lg-up for the Tablet viewport.
Due to this fact, this change will not cause any regression for
existing LinkButton in other places (dataset page, landing page,
contribution, dashboard, notification-banner)
common-voice/common-voice,common-voice/common-voice,common-voice/common-voice,common-voice/common-voice