admin a11y polish

app/views/admin/question/_table_list.html.erb

@@ -14,7 +14,7 @@
       <td><%= question.question %></td>
       <td><%= question.input_type %></td>
       <td><%= question.category %></td>
-      <td><%= question.active unless question.active? %></td>
+      <td><%= raw question.active? ? "&check;" : "&cross;" %></td>
       <td><%= link_to 'Edit', admin_edit_question_path(question.to_i), { class: "" } %></td>
     </tr>
   <% end %>