fix: locale - back to shopping card

Related: #21

locale.xml

@@ -115,6 +115,10 @@
             <de><![CDATA[Bitte füge Deiner Bestellung / Deinem Warenkorb Artikel hinzu.]]></de>
             <en><![CDATA[Please add items to your order / shopping cart.]]></en>
         </locale>
+        <locale name="ordering.btn.continue.basket">
+            <de><![CDATA[Zurück zum Warenkorb]]></de>
+            <en><![CDATA[Back to shopping cart]]></en>
+        </locale>
     </groups>
 
     <groups name="quiqqer/order-simple-checkout" datatype="php">

src/QUI/ERP/Order/SimpleCheckout/Checkout.html

@@ -117,7 +117,9 @@
                 </button>
 
                 {if $this->getAttribute('showBasketLink') && $BasketSite}
-                    <a href="{url Site=$BasketSite}" class="quiqqer-simple-checkout-basket__link">Zurück zum Warenkorb</a>
+                    <a href="{url Site=$BasketSite}" class="quiqqer-simple-checkout-basket__link">
+                        {locale group="quiqqer/order" var="ordering.btn.continue.basket"}
+                    </a>
                 {/if}
             </div>