Use timeAgo in the notifications overview

refs #6778

modules/monitoring/application/views/scripts/list/notifications.phtml

@@ -34,11 +34,7 @@ use Icinga\Module\Monitoring\Object\Service;
     ?>
         <tr class="state <?= $stateName ?>">
             <td class="state">
-                <?= $this->dateTimeRenderer($notification->notification_start_time)->render(
-                    $this->translate('on %s', 'datetime'),
-                    $this->translate('at %s', 'time'),
-                    $this->translate('%s ago', 'timespan')
-                ) ?>
+                <?= $this->timeAgo($notification->notification_start_time) ?>
             </td>
             <td style="font-size: 0.8em">
                 <?php if ($isService): ?>