first commit

platform_web/app/main.tsx

@@ -0,0 +1,11 @@
+import React from "react";
+import { createRoot } from "react-dom/client";
+
+import { App } from "./App";
+import "../theme/base.css";
+
+createRoot(document.getElementById("root") as HTMLElement).render(
+  <React.StrictMode>
+    <App />
+  </React.StrictMode>
+);