added main picture for widget

app/controllers/announcements_controller.rb

@@ -65,8 +65,12 @@ class AnnouncementsController < ApplicationController
         "img_description" => a.image_description
       }
     end
+    mp = (anns[0]["img_src"] rescue "")
+    mpd = (anns[0]["img_description"] rescue "")
     {
       "announcements" => anns,
+      "main_picture" => mp,
+      "main_picture_description" => mpd,
       "extras" => {
         "more_url"=>OrbitHelper.widget_more_url,
         "title-head" => t('announcement.table.title'),