Improve UX of grouping buttons.

Based on Figma: https://www.figma.com/file/fYqH7kcHEgXggXXxFtDFsL/Winscope-2024?type=design&node-id=190-7&mode=design&t=PGHpkWQQy3f6iJQx-0

Screencast of changes: https://screencast.googleplex.com/cast/NDgyODkwMTYxMTE0MzE2OHwwNTIyODA2Yi1iZg

Fixes: 323146502
Test: npm run test:unit:ci

Change-Id: I6fa1dc89aa297155aaf33e20b36fed3bf63ff0e3
3 files changed