Update to Rust programming language.

src/main.ts

@@ -0,0 +1,13 @@
+// Klondike project old CSS file
+import "./css/main.scss";
+
+// App current CSS file
+import "./css/styles.scss";
+
+// deploy app
+import App from "./App.svelte";
+const app = new App({
+  target: document.getElementById("app"),
+});
+
+export default app;