CocoClassHelpDocs/.vitepress/theme/index.ts

// https://vitepress.dev/guide/custom-theme
import type { Theme } from "vitepress";
import DefaultTheme from "vitepress/theme";
import CustomLayout from "../../components/CustomLayout.vue";
import i18n from "../../plugins/i18n";
import "./style.css";

export default {
  extends: DefaultTheme,
  Layout: CustomLayout,
  enhanceApp({ app, router, siteData }) {
    app.use(i18n);
    // ...
  },
} satisfies Theme;