Merge branch 'improve-empty-header-ux' into 'master'

Improve audit events streaming header UX

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/124848



Merged-by: Ezekiel Kigbo <3397881-ekigbo@users.noreply.gitlab.com>
Approved-by: Jay Montal <jmontal@gitlab.com>
Approved-by: Camellia X Yang <xyang@gitlab.com>
Approved-by: Samantha Ming <sming@gitlab.com>
Approved-by: Ezekiel Kigbo <3397881-ekigbo@users.noreply.gitlab.com>
Co-authored-by: lorenzvanherwaarden <lvanherwaarden@gitlab.com>