Stream end of poll notification over websockets and web push

changelog.d/stream-end-poll.fix

@@ -0,0 +1 @@
+End of poll notifications were not streamed over websockets or web push

lib/pleroma/notification.ex

@@ -479,6 +479,8 @@ defmodule Pleroma.Notification do
           end
         end)
 
+      stream(notifications)
+
       {:ok, notifications}
     end
   end