ui/ux: add single-click active toggle to restream configurations

[JanKoppe]

As a user, I want to be able to modify the active state of a restream configuration from both the listview and detail view with a single click.

[JanKoppe]

partially done! after implementing DRF I've added some vue+axios javascript that loads a list of restream configs and is able to directly change active/inactive via ajax patch calls on the listview

still missing: detailview.