Add editing for published statuses (#17320)

* Add editing for published statuses

* Fix change of multiple-choice boolean in poll not resetting votes

* Remove the ability to update existing media attachments for now

config/routes.rb

@@ -332,7 +332,7 @@ Rails.application.routes.draw do
 
     # JSON / REST API
     namespace :v1 do
-      resources :statuses, only: [:create, :show, :destroy] do
+      resources :statuses, only: [:create, :show, :update, :destroy] do
         scope module: :statuses do
           resources :reblogged_by, controller: :reblogged_by_accounts, only: :index
           resources :favourited_by, controller: :favourited_by_accounts, only: :index