fixed template updation from site preferences

app/controllers/admin/designs_controller.rb

@@ -54,10 +54,9 @@ class Admin::DesignsController < OrbitBackendController
     when 'javascripts', 'themes'#, 'images'
       @object = @design.send(params[:type]).find(params[:object_id])
     end
-
     Dir.mktmpdir('f_path') { |dir|
       temp_file = File.new(dir + '/' + File.basename(@object.file.url), 'w+') 
-      temp_file.write(params[:file][:content].force_encoding('UTF-8'))
+      temp_file.write(params[:html_code].force_encoding('UTF-8'))
       @object.remove_file!
       @object.file = temp_file
       @object.save