if condition to check if a sender is assigned or if notification was assigned automatically by the system

src/Bundle/ChillMainBundle/Resources/public/vuejs/HomepageWidget/MyNotifications.vue

@@ -17,7 +17,8 @@
                   <a :href="getNotificationUrl(n)">{{ n.title }}</a>
                </span>
             </td>
-            <td>{{ n.sender.text }}</td>
+            <td v-if="n.sender != null">{{ n.sender.text }}</td>
+            <td v-else>{{ $t('automatic_notification')}}</td>
             <td>
                <a class="btn btn-sm btn-show"
                   :href="getEntityUrl(n)">