Add global things from old app

src/components/global/Header.tsx

@@ -0,0 +1,18 @@
+// import { auth } from "@/auth";
+// import { SignInOutButton } from "../auth/SignInOutButton";
+import ModeToggle from "./ModeToggle";
+import TopNav from "./TopNav";
+
+export default async function Header() {
+  // const session = await auth()
+
+  return (
+    <div className="flex items-center justify-between">
+      <TopNav />
+      <div className="flex items-center justify-between gap-4">
+        {/* <SignInOutButton session={session} /> */}
+        <ModeToggle />
+      </div>
+    </div>
+  );
+}