Fix JS error

BTCPayServer/Views/Stores/AddDerivationScheme.cshtml

@@ -225,11 +225,12 @@
     <script>
         window.coinName = "@Model.Network.DisplayName.ToLowerInvariant()";
         $(function () {
-            initCameraScanningApp("Scan wallet QR", function(data){
-                $("#WalletFileContent").val(data);
-                $("#qr-import-form").submit();
-            },"scanqrModal");
+            if (typeof(initCameraScanningApp) === "function") {
+                initCameraScanningApp("Scan wallet QR", function(data){
+                    $("#WalletFileContent").val(data);
+                    $("#qr-import-form").submit();
+                },"scanqrModal");
+            }
         });
-
     </script>
 }

BTCPayServer/Views/Wallets/WalletPSBT.cshtml

@@ -86,17 +86,17 @@
     <script src="~/vendor/highlightjs/highlight.min.js" asp-append-version="true"></script>
     <bundle name="wwwroot/bundles/camera-bundle.min.js"></bundle>
     <link href="~/vendor/vue-qrcode-reader/vue-qrcode-reader.css" rel="stylesheet" asp-append-version="true"/>
-    <script>hljs.initHighlightingOnLoad();</script>
-
     <script>
-    
-    $(function (){
-        initQRShow("Scan PSBT", @Json.Serialize(Model.PSBTHex), "scan-qr-modal");
-        
-       initCameraScanningApp("Scan PSBT", function (data){
-           $("textarea[name=PSBT]").val(data);
-           $("#Decode").click();
-       }, "scanModal") 
-    });
-</script>
+        hljs.initHighlightingOnLoad();
+
+        $(function (){
+            initQRShow("Scan PSBT", @Json.Serialize(Model.PSBTHex), "scan-qr-modal");
+            if (typeof(initCameraScanningApp) === "function") {
+                initCameraScanningApp("Scan PSBT", function (data){
+                   $("textarea[name=PSBT]").val(data);
+                   $("#Decode").click();
+                }, "scanModal");
+            }
+        });
+    </script>
 }

BTCPayServer/wwwroot/js/wallet/wallet-camera-scanner.js

@@ -1,6 +1,8 @@
 $(function () {
-    initCameraScanningApp("Scan address/ payment link", function(data){
-        $("#BIP21").val(data);
-        $("form").submit();
-    },"scanModal");
+    if (typeof(initCameraScanningApp) === "function") {
+        initCameraScanningApp("Scan address/ payment link", function(data) {
+            $("#BIP21").val(data);
+            $("form").submit();
+        },"scanModal");
+    }
 });