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

config/routes.rb

@@ -350,6 +350,9 @@ Rails.application.routes.draw do
 
           resource :pin, only: :create
           post :unpin, to: 'pins#destroy'
+
+          resource :history, only: :show
+          resource :source, only: :show
         end
 
         member do