Improve English for "The last one occured %s ago" in the notifications view component for objects

fixes #8950

modules/monitoring/application/views/scripts/show/components/notifications.phtml

@@ -43,7 +43,7 @@ if (! in_array((int) $object->state, array(0, 99))) {
                 $this->translate('%d notifications have been sent for this issue'),
                 $object->current_notification_number
             ) . '<br />' . sprintf(
-                $this->translate('The last one occured %s'),
+                $this->translate('The last one was sent %s'),
                 $this->timeAgo($object->last_notification)
             );
         }