Move to TanStack Start from Next.js (#184)

web/app/routes/_layout.tsx

@@ -0,0 +1,17 @@
+import { Outlet, createFileRoute } from "@tanstack/react-router"
+import { ThemeProvider } from "next-themes"
+import { ClerkProvider } from "~/lib/providers/clerk-provider"
+
+export const Route = createFileRoute("/_layout")({
+  component: LayoutComponent,
+})
+
+function LayoutComponent() {
+  return (
+    <ThemeProvider attribute="class" defaultTheme="system" enableSystem>
+      <ClerkProvider>
+        <Outlet />
+      </ClerkProvider>
+    </ThemeProvider>
+  )
+}