feat: add docs routing

src/App.tsx

@@ -1,23 +1,8 @@
-import { Suspense } from "react";
-import { Canvas } from "@react-three/fiber";
-import { Crosshair } from "@/components/ui/Crosshair";
-import { InteractPrompt } from "@/components/ui/InteractPrompt";
-import { DebugPerf } from "@/utils/debug/DebugPerf";
-import { World } from "@/world/World";
+import { RouterProvider } from "@tanstack/react-router";
+import { router } from "@/router";
 
 function App(): React.JSX.Element {
-  return (
-    <>
-      <Canvas camera={{ position: [85, 60, 85], fov: 42 }} shadows>
-        <Suspense fallback={null}>
-          <World />
-          <DebugPerf />
-        </Suspense>
-      </Canvas>
-      <Crosshair />
-      <InteractPrompt />
-    </>
-  );
+  return <RouterProvider router={router} />;
 }
 
 export default App;