Update trial status reminder design

What does this MR do and why?

The purpose of this issue is to update the trial status reminder design based on UX improvements made during the original experiment cleanup process.

Screenshots or screen recordings

Before:	After:

How to set up and validate locally

1. Login as an active trial user or login as regular user and go to /-/trials/new to activate trial.
2. Go to any group or create new one. See trial status widget

Related to #340731 (closed)