fix(CouponCodeInput): mobile buttons adjusted

Related: quiqqer/template-cologne#103

src/QUI/ERP/Coupons/Products/Handler.php

@@ -194,7 +194,7 @@ protected static function createCouponCodeFromProduct(
                 'quiqqer/coupons',
                 'ProductCoupon.coupon_title',
                 [
-                    'orderId' => $Order->getPrefixedId(),
+                    'orderId' => $Order->getPrefixedNumber(),
                     'productId' => $Product->getId()
                 ]
             ),