Fix miscellaneous RTL layout bugs

frontend/src/app/lightning/node/node.component.html

@@ -57,7 +57,7 @@
             </tr>
             <tr *ngIf="(avgChannelDistance$ | async) as avgDistance;">
               <td i18n="lightning.avg-distance" class="text-truncate">Avg channel distance</td>
-              <td>{{ avgDistance | number : '1.0-0' }} <span class="symbol">km</span> <span class="separator">/</span> {{ kmToMiles(avgDistance) | number : '1.0-0' }} <span class="symbol">mi</span></td>
+              <td class="direction-ltr">{{ avgDistance | number : '1.0-0' }} <span class="symbol">km</span> <span class="separator">/</span> {{ kmToMiles(avgDistance) | number : '1.0-0' }} <span class="symbol">mi</span></td>
             </tr>
           </tbody>
         </table>