Timestamp component

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

@@ -43,13 +43,13 @@
               <tr>
                 <td i18n="address.total-received">First seen</td>
                 <td>
-                  <app-time-since [dateString]="node.first_seen"></app-time-since>
+                  <app-timestamp [dateString]="node.first_seen"></app-timestamp>
                 </td>
               </tr>
               <tr>
                 <td i18n="address.total-sent">Last update</td>
                 <td>
-                  <app-time-since [dateString]="node.updated_at"></app-time-since>
+                  <app-timestamp [dateString]="node.updated_at"></app-timestamp>
                 </td>
               </tr>
               <tr>