app/_document.tsx

// eslint-disable-next-line @next/next/no-document-import-in-page
import Document, {
  Html,
  Head,
  Main,
  NextScript,
  DocumentContext,
  DocumentProps,
} from "next/document";
// eslint-disable-next-line @next/next/no-document-import-in-page
import Script from "next/script";

type Props = DocumentProps & {
  // add custom document props
};

class MyDocument extends Document<Props> {
  static async getInitialProps(ctx: DocumentContext) {
    const initialProps = await Document.getInitialProps(ctx);
    return { ...initialProps, locale: ctx?.locale || "en" };
  }
  render() {
    return (
      <Html lang={this.props.locale}>
        <link rel="preconnect" href="https://fonts.googleapis.com" />
        <link rel="preconnect" href="https://fonts.gstatic.com" />
        <link
          href="https://fonts.googleapis.com/css2?family=Montserrat:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,100;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&display=swap"
          rel="stylesheet"
        />

        <link
          href="https://fonts.googleapis.com/css2?family=Karla:ital,wght@0,200..800;1,200..800&display=swap"
          rel="stylesheet"
        />
        <Head>
          <meta charSet="utf-8" />
          <title> My Portoflio </title>
        </Head>
        <body>
          <Main />
          <NextScript />
        </body>
      </Html>
    );
  }
}

export default MyDocument;