Add ability to translate server rules (#34494)

app/serializers/rest/rule_serializer.rb

@@ -1,9 +1,15 @@
 # frozen_string_literal: true
 
 class REST::RuleSerializer < ActiveModel::Serializer
-  attributes :id, :text, :hint
+  attributes :id, :text, :hint, :translations
 
   def id
     object.id.to_s
   end
+
+  def translations
+    object.translations.to_h do |translation|
+      [translation.language, { text: translation.text, hint: translation.hint }]
+    end
+  end
 end