languages fix

app/controllers/admin/page_contents_controller.rb

@@ -1,7 +1,7 @@
 class Admin::PageContentsController < OrbitAdminController
   before_action ->(module_app = @app_title) { set_variables module_app }
   def index
-    @table_fields = [:page_id, :name,:version,:update_at,:last_modified, :category]
+    @table_fields = ["page_content.id", :name,:version,:update_at,:last_modified, :category]
     @filter_fields = {}
     if params[:sort].blank? && params[:keywords].blank?
       @pages = get_pages_sorted(Page.root)

app/views/admin/page_contents/_index.html.erb

@@ -26,7 +26,7 @@
       <td><%= User.find(page.page_contexts.last.update_user_id).user_name rescue nil %></td>
       <td>
        <% if can_edit_or_delete?(page) %>
-        <%= select_tag("category_id",options_for_select(@categories, (page.category_id.to_s rescue "")), prompt: "Select a category", class: "category_select", style: "margin-bottom:0; width:150px;") %>
+        <%= select_tag("category_id",options_for_select(@categories, (page.category_id.to_s rescue "")), prompt: t("select_category"), class: "category_select", style: "margin-bottom:0; width:150px;") %>
         <button <%= !page.category_id.nil? ? "data-page-category-id=#{page.category_id.to_s}" : "" %> data-page-id="<%= page.id.to_s %>" class="btn btn-primary save_category hide">Save</button>
         <% end %>
       </td>