Support slot and prop for system-note-message and system-note-separator in NoteHeader component
Following https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/8790#note_126286839:
The NoteHeader
component has a default slot which is wrapped in .system-note-message
and an actionText
prop which is wrapped in .system-note-separator
. We should
- support passing both as slots and props
- consider renaming the CSS classes because they don't always refer to system notes