Add support for editing for published statuses (#16697)

* Add support for editing for published statuses

* Fix references to stripped-out code

* Various fixes and improvements

* Further fixes and improvements

* Fix updates being potentially sent to unauthorized recipients

* Various fixes and improvements

* Fix wrong words in test

* Fix notifying accounts that were tagged but were not in the audience

* Fix mistake

app/serializers/rest/status_source_serializer.rb

@@ -0,0 +1,9 @@
+# frozen_string_literal: true
+
+class REST::StatusSourceSerializer < ActiveModel::Serializer
+  attributes :id, :text, :spoiler_text
+
+  def id
+    object.id.to_s
+  end
+end