Follow up to #5172, clean up notifications after mute like after block (#5198)

app/services/mute_service.rb

@@ -3,7 +3,8 @@
 class MuteService < BaseService
   def call(account, target_account)
     return if account.id == target_account.id
-    FeedManager.instance.clear_from_timeline(account, target_account)
-    account.mute!(target_account)
+    mute = account.mute!(target_account)
+    BlockWorker.perform_async(account.id, target_account.id)
+    mute
   end
 end