Add consists view in rolling stock and them in company filter

ram/portal/templates/cards/company.html

@@ -14,7 +14,7 @@
                 {% if d.item.logo %}
                 <tr>
                   <th class="w-33" scope="row">Logo</th>
-                  <td><img style="max-height: 48px" src="{{ d.item.logo.url }}" /></td>
+                  <td><img class="logo" src="{{ d.item.logo.url }}" /></td>
                 </tr>
                 {% endif %}
                 <tr>

ram/portal/templates/cards/consist.html

@@ -44,7 +44,7 @@
                 </tr>
                 <tr>
                   <th scope="row">Length</th>
-                  <td>{{ d.item.consist_item.all | length }}</td>
+                  <td>{{ d.item.consist_item.count }}</td>
                 </tr>
               </tbody>
             </table>