lots of admin stuff. admin layout, user mangement page, new landing page, etc

app/(builder)/layout.tsx

@@ -0,0 +1,11 @@
+import { TopNav } from "@/components/TopNav";
+import type { ReactNode } from "react";
+
+export default function BuilderLayout({ children }: { children: ReactNode }) {
+  return (
+    <div className="min-h-screen bg-black text-zinc-50">
+      <TopNav />
+      {children}
+    </div>
+  );
+}