Added a base layout with a nav bar

components/authRequired.jsx

@@ -0,0 +1,17 @@
+import Link from "next/link";
+
+const AuthRequired = (props) => {
+  return (
+    <>
+      <p>Hi there!</p>
+      <p>
+        You are not signed in.{" "}
+        <Link href={"/auth"}>
+          <a>Sign in</a>
+        </Link>
+      </p>
+    </>
+  );
+};
+
+export default AuthRequired;