- Add design tokens needed for Figma implementation (from
  gitlab-org/gitlab-ui!4451)
- Update descriptions to be more specific to badge types
- Remove generic status-related language from descriptions

After investigation, browsers seem clever enough
not to leak an unset start color into a transition
from opacity 0. Change to color.alpha.0 for easier
maintenance.

feat: Add missing badge design tokens

See merge request gitlab-org/gitlab-ui!4468



Merged-by: Scott de Jonge <sdejonge@gitlab.com>
Approved-by: Jeremy Elder <jelder@gitlab.com>
Approved-by: Scott de Jonge <sdejonge@gitlab.com>
Reviewed-by: Scott de Jonge <sdejonge@gitlab.com>
Co-authored-by: danmh <dmizzi-harris@gitlab.com>

# [88.4.0](gitlab-org/gitlab-ui@v88.3.0...v88.4.0) (2024-08-08)

### Features

* Add missing badge design tokens ([d36a5f85](gitlab-org/gitlab-ui@d36a5f85))