add js folder

game.html

@@ -70,7 +70,7 @@
 
     
     <script type="module">
-        import {main, btnHigherClick, btnLowerClick} from "./game.js"
+        import {main, btnHigherClick, btnLowerClick} from "./js/game.js"
         window.btnHigherClick = btnHigherClick
         window.btnLowerClick = btnLowerClick
         main()

gst.html

@@ -68,7 +68,7 @@
     </div>
 
     <script type="module">
-        import {main, btnClick} from "./gst.js"
+        import {main, btnClick} from "./js/gst.js"
         window.btnClick = btnClick
         main()
     </script>