fix(thank-you): serve GiroCode as signed PNG URL instead of data URL

extensions/invoice-thank-you-payment/src/Checkout.tsx

@@ -16,7 +16,7 @@ function resolveAppUrl(shopify: any): string {
 interface PaymentInstructions {
   language: "de" | "en";
   heading: string;
-  giroCodeDataUrl: string;
+  giroCodeUrl: string;
   recipient: string;
   bankName: string;
   iban: string;
@@ -103,7 +103,7 @@ function Extension() {
     <s-section heading={data.heading}>
       <s-paragraph>{data.instructions}</s-paragraph>
       <s-stack direction="inline" gap="base" align-items="start">
-        <s-image src={data.giroCodeDataUrl} alt="GiroCode" inline-size="200px" />
+        <s-image src={data.giroCodeUrl} alt="GiroCode" inline-size="200px" />
         <s-stack direction="block" gap="small-200">
           <s-text>{data.labels.recipient}: {data.recipient}</s-text>
           {data.bankName ? (