public static function getAllNotificationsToDisplay()
    {
        $notifications = static::getAllNotifications();

        uasort($notifications, function ($n1, $n2) {
            /** @var Notification $n1 */ /** @var Notification $n2 */
            if ($n1->getPriority() == $n2->getPriority()) {
                return 0;
            }

            return $n1->getPriority() > $n2->getPriority() ? -1 : 1;
        });

        return $notifications;
    }