Add category for announcement widget

app/controllers/admin/page_parts_controller.rb

@@ -26,6 +26,7 @@ class Admin::PagePartsController < ApplicationController
     @module_app = @part.module_app ? @part.module_app : @module_apps[0]
     @r_tag = @part.public_r_tag.blank? ? LIST[:public_r_tags][0] : @part.public_r_tag
     @tag_objects = @r_tag.classify.constantize.all
+    @categories =  BulletinCategory.all
   end
 
   def create