allow public_version association to Ransack

Author: gr8bit

app/models/alchemy/json_api/page.rb

@@ -5,6 +5,10 @@ def Page.ransackable_attributes(_auth_object = nil)
     super | %w[page_layout]
   end
 
+  def Page.ransackable_associations(_auth_object = nil)
+    super | %w[public_version]
+  end
+
   module JsonApi
     class Page < SimpleDelegator
       attr_reader :page_version_type, :page_version