Change featured tag updates to add/remove activity (#19409)

* Change featured tag updates to add/remove activity

* Fix to check for the existence of feature tag

* Rename service and worker

* Merge AddHashtagSerializer with AddSerializer

* Undo removal of sidekiq_options

app/workers/activitypub/account_raw_distribution_worker.rb

@@ -0,0 +1,9 @@
+# frozen_string_literal: true
+
+class ActivityPub::AccountRawDistributionWorker < ActivityPub::RawDistributionWorker
+  protected
+
+  def inboxes
+    @inboxes ||= AccountReachFinder.new(@account).inboxes
+  end
+end