Change how changes to media attachments are stored for edits (#17696)

* Change how changes to media attachments are stored for edits

Fix not being able to re-order media attachments

* Fix not broadcasting updates when polls/media is changed through ActivityPub

* Various fixes and improvements

* Update app/models/report.rb

Co-authored-by: Claire <claire.github-309c@sitedethib.com>

* Add tracking of media attachment description changes

* Change poll in status edit to have a structure closer to the real one

Co-authored-by: Claire <claire.github-309c@sitedethib.com>

app/views/disputes/strikes/show.html.haml

@@ -53,7 +53,7 @@
                   = link_to short_account_status_url(@strike.target_account, status_id), class: 'emojify' do
                     = one_line_preview(status)
 
-                    - status.media_attachments.each do |media_attachment|
+                    - status.ordered_media_attachments.each do |media_attachment|
                       %abbr{ title: media_attachment.description }
                         = fa_icon 'link'
                         = media_attachment.file_file_name