Translate CW, poll options and media descriptions (#24175)

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

app/models/translation.rb

@@ -0,0 +1,14 @@
+# frozen_string_literal: true
+
+class Translation < ActiveModelSerializers::Model
+  attributes :status, :detected_source_language, :language, :provider,
+             :content, :spoiler_text, :poll_options, :media_attachments
+
+  class Option < ActiveModelSerializers::Model
+    attributes :title
+  end
+
+  class MediaAttachment < ActiveModelSerializers::Model
+    attributes :id, :description
+  end
+end