The admin log frontend already has filtering. Also, nobody (not even supers) can see content OR activity for deleted content, so now we need:
An endpoint that allows super users to restore deleted content, which should just call the RestoreRevision DbWriter function with the second to last revision
Add buttons to the adminlog that let you undelete content (each admin log has a type and a contentId, use the type to show the button, pass the contentId to the endpoint)
The admin log frontend already has filtering. Also, nobody (not even supers) can see content OR activity for deleted content, so now we need: