Refactor formatter (#17828)

* Refactor formatter

* Move custom emoji pre-rendering logic to view helpers

* Move more methods out of Formatter

* Fix code style issues

* Remove Formatter

* Add inline poll options to RSS feeds

* Remove unused helper method

* Fix code style issues

* Various fixes and improvements

* Fix test

app/views/notification_mailer/_status.html.haml

@@ -28,10 +28,10 @@
                               - if status.spoiler_text?
                                 %div.auto-dir
                                   %p
-                                    = Formatter.instance.format_spoiler(status)
+                                    = status.spoiler_text
 
                               %div.auto-dir
-                                = Formatter.instance.format(status)
+                                = status_content_format(status)
 
                                 - if status.ordered_media_attachments.size > 0
                                   %p

app/views/notification_mailer/_status.text.erb

@@ -3,6 +3,6 @@
 > ----
 >
 <% end %>
-> <%= raw word_wrap(Formatter.instance.plaintext(status), break_sequence: "\n> ") %>
+> <%= raw word_wrap(extract_plain_text(status.text, status.local?), break_sequence: "\n> ") %>
 
 <%= raw t('application_mailer.view')%> <%= web_url("statuses/#{status.id}") %>

app/views/notification_mailer/digest.text.erb

@@ -5,7 +5,7 @@
 
 * <%= raw t('notification_mailer.digest.mention', name: notification.from_account.pretty_acct) %>
 
-  <%= raw Formatter.instance.plaintext(notification.target_status) %>
+  <%= raw extract_plain_text(notification.target_status.text, notification.target_status.local?) %>
 
   <%= raw t('application_mailer.view')%> <%= web_url("statuses/#{notification.target_status.id}") %>
 <% end %>