fix return types

src/app/layout.tsx

@@ -4,6 +4,7 @@ import { Metadata, Viewport } from "next";
 import "./globals.css";
 
 import Script from "next/script";
+import { ReactElement } from "react";
 import Config from "../../config.json";
 import Container from "./components/container";
 import ThemeProvider from "./components/theme-provider";
@@ -43,7 +44,7 @@ export default function RootLayout({
   children,
 }: Readonly<{
   children: React.ReactNode;
-}>): JSX.Element {
+}>): ReactElement {
   return (
     <>
       <Script defer data-domain="mcutils.xyz" src="https://analytics.fascinated.cc/js/script.js" />