Merge branch '442793-add-divider-to-work-item-time-tracking' into 'master'

Resolve "Add divider to work item time tracking"

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/145583



Merged-by: Coung Ngo <cngo@gitlab.com>
Approved-by: Coung Ngo <cngo@gitlab.com>
Co-authored-by: Nick Leonard <nleonard@gitlab.com>