fixed js error in safari

pass/public/js/key.js

 // Transfer Dialog
-{
-    let transfer_dialog = document.getElementById("transfer-dialog");
-    let transfer_dialog_open_button = document.querySelector("#buttons > button.transfer");
-    let transfer_dialog_close_button = transfer_dialog.querySelector("div.close-group > button");
-    let transfer_dialog_codecontainer = transfer_dialog.querySelector("div.input-group > div");
-    let transfer_dialog_interval = null;
-    transfer_dialog_open_button.addEventListener("click", e => {
-        openModal();
-    });
-    transfer_dialog_close_button.addEventListener("click", e => {
-        closeModal();
-    })
 
-    function openModal() {
-        transfer_dialog.showModal();
-        checkCode();
-        transfer_dialog_interval = setInterval(checkCode, 1000);
-    }
+let transfer_dialog = document.getElementById("transfer-dialog");
+let transfer_dialog_open_button = document.querySelector("#buttons > button.transfer");
+let transfer_dialog_close_button = transfer_dialog.querySelector("div.close-group > button");
+let transfer_dialog_codecontainer = transfer_dialog.querySelector("div.input-group > div");
+let transfer_dialog_interval = null;
+transfer_dialog_open_button.addEventListener("click", e => {
+    openModal();
+});
+transfer_dialog_close_button.addEventListener("click", e => {
+    closeModal();
+})
 
-    function checkCode() {
-        getCode().then(code => {
-            let current_code = transfer_dialog_codecontainer.textContent.trim();
-            if (current_code != "Loading" && code != current_code) {
-                console.log("Code invalidated closing");
-                console.log(code, current_code);
-                closeModal();
-                return;
-            } else {
-                transfer_dialog_codecontainer.textContent = code;
-            }
-        })
-    }
+function openModal() {
+    transfer_dialog.showModal();
+    checkCode();
+    transfer_dialog_interval = setInterval(checkCode, 1000);
+}
 
-    function closeModal() {
-        transfer_dialog.close();
-        transfer_dialog_codecontainer.textContent = "Loading";
-        if (transfer_dialog_interval != null) {
-            clearInterval(transfer_dialog_interval);
-            transfer_dialog_interval = null;
+function checkCode() {
+    getCode().then(code => {
+        let current_code = transfer_dialog_codecontainer.textContent.trim();
+        if (current_code != "Loading" && code != current_code) {
+            console.log("Code invalidated closing");
+            console.log(code, current_code);
+            closeModal();
+            return;
+        } else {
+            transfer_dialog_codecontainer.textContent = code;
         }
-    }
+    })
+}
 
-    async function getCode() {
-        let url = transfer_dialog.querySelector("div.input-group").dataset.url;
-        return fetch(url).then(res => res.json()).then(res => {
-            return res.code;
-        }).catch(reason => {
-            console.error(reason);
-            closeModal();
-            return "Loading";
-        })
+function closeModal() {
+    transfer_dialog.close();
+    transfer_dialog_codecontainer.textContent = "Loading";
+    if (transfer_dialog_interval != null) {
+        clearInterval(transfer_dialog_interval);
+        transfer_dialog_interval = null;
     }
 }
+
+async function getCode() {
+    let url = transfer_dialog.querySelector("div.input-group").dataset.url;
+    return fetch(url).then(res => res.json()).then(res => {
+        return res.code;
+    }).catch(reason => {
+        console.error(reason);
+        closeModal();
+        return "Loading";
+    })
+}