Merge branch 'pipeline-status-improvement' into 'master'

MR pipeline widget: cleanup

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/126715



Merged-by: Phil Hughes <me@iamphill.com>
Approved-by: Annabel Dunstone Gray <annabel.dunstone@gmail.com>
Approved-by: Matthew Nearents <mnearents@gitlab.com>
Approved-by: Lorenz van Herwaarden <lvanherwaarden@gitlab.com>
Approved-by: Alex Fracazo <afracazo@gitlab.com>
Approved-by: Veethika Mishra <6115425-veethika@users.noreply.gitlab.com>
Approved-by: Phil Hughes <me@iamphill.com>
Reviewed-by: Phil Hughes <me@iamphill.com>
Reviewed-by: Veethika Mishra <6115425-veethika@users.noreply.gitlab.com>
Reviewed-by: Lorenz van Herwaarden <lvanherwaarden@gitlab.com>
Co-authored-by: Sascha Eggenberger <seggenberger@gitlab.com>