Add group admin profiles

And other fixes

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

lib/web/views/activity_pub/actor_view.ex

@@ -88,7 +88,7 @@ defmodule Mobilizon.Web.ActivityPub.ActorView do
   end
 
   defp fetch_collection(:discussions, actor, page) do
-    Discussions.find_discussions_for_actor(actor.id, page)
+    Discussions.find_discussions_for_actor(actor, page)
   end
 
   defp fetch_collection(:posts, actor, page) do