For umi + antd5 i18n

add-dep.sh

# Add dayjs dep first
pnpm add dayjs

app.tsx

import React, { ReactNode } from "react";
import { App, ConfigProvider } from "antd";
import zhCN from "antd/locale/zh_CN";
import "dayjs/locale/zh-cn";

export function rootContainer(container: ReactNode) {
  return React.createElement(() => {
    return (
      <ConfigProvider locale={zhCN}>
        <App>{container}</App>
      </ConfigProvider>
    );
  });
}