fix `{` issue. Need two as this is the escape character.

src/templates/result.html

@@ -8,8 +8,7 @@
     <link rel="stylesheet" type="text/css" href="static/styles.css">
     <link rel="icon" type="image/png" href="static/favicon-32x32.png" sizes="32x32">
     <script>
-        function copyToClipboard() {
-            {
+        function copyToClipboard() {{
                 const urnValue = document.getElementById('urn').innerText;
                 const tempInput = document.createElement('input');
                 tempInput.value = urnValue;
@@ -18,8 +17,7 @@
                 document.execCommand('copy');
                 document.body.removeChild(tempInput);
                 alert('URN copied to clipboard: ' + urnValue);
-            }
-        }
+        }}
     </script>
 </head>