Add preference to hide following/followers lists (#7532)

* Add preference to hide following/followers lists

- Public pages
- ActivityPub collections (does not return pages but does give total)
- REST API (unless it's your own) (does not federate)

Fix #6901

* Add preference

* Add delegation

* Fix issue

* Fix issue

config/settings.yml

@@ -20,6 +20,7 @@ defaults: &defaults
   timeline_preview: true
   show_staff_badge: true
   default_sensitive: false
+  hide_network: false
   unfollow_modal: false
   boost_modal: false
   delete_modal: true