Having the macOS Help button in a scrolling view feels kind of weird, but that's
what Apple is doing in the Ventura System Settings app, so I guess we go with
it. I like it better than Firefox's non-contextual "Firefox Support" button
under the pane list in their preferences, anyway - having pane-by-pane
contextual help buttons seems like good UX that there isn't a good reason for us
to ditch.