add Vite-based app for example TypeScript application

app/src/Inspector.tsx

@@ -0,0 +1,13 @@
+import { useState } from "react";
+import { PMTiles } from "../../js";
+import { styled } from "./stitches.config";
+
+function Inspector() {
+  return (
+    <>
+    foo
+    </>
+  );
+}
+
+export default Inspector;