[fix] engines page translation

searx/templates/engines.html

@@ -14,7 +14,7 @@
             {% if not search_engine.private %}
             <tr>
                 <td>{{ search_engine.name }}</td>
-                <td>{{ categ }}</td>
+                <td>{{ _(categ) }}</td>
             </tr>
             {% endif %}
         {% endfor %}