Prettier index.html

frontend/index.html

@@ -1,10 +1,10 @@
 <!DOCTYPE html>
 <html lang="en">
-<head>
-  <meta charset="UTF-8">
+  <head>
+    <meta charset="UTF-8" />
     <title>Chess</title>
-</head>
-<body>
+  </head>
+  <body>
     <script type="module" src="main.js"></script>
-</body>
+  </body>
 </html>