add arraybuffer to base64 before sorting

src/services/QrCodeDataService.ts

@@ -155,7 +155,7 @@ const computeQrCodeHash = async (emailData: MessageData): Promise<string> => {
 
   const hashArray = await Promise.all(promises);
 
-  return hashArray.sort().join("\n");
+  return hashArray.map(arrayBufferToBase64).sort().join("\n");
 };
 
 const calculateQRCodeSignature = async (