Reduce Antd icons bundle size

See related issue.

Before	After

Config alias

See the whole file src/icons.js

// src/icons.js

// export what you need
export {
  default as SmileOutline
} from '@ant-design/icons/lib/outline/SmileOutline';
export {
  default as MehOutline
} from '@ant-design/icons/lib/outline/MehOutline';

// export what antd other components need
export {
  default as CloseOutline
} from '@ant-design/icons/lib/outline/CloseOutline';
// and other icons...

// .umirc.js
export default {
  alias: {
    '@ant-design/icons/lib/dist$': path.resolve(__dirname, './src/icons.js')
  }
};

// vue.config.js
module.exports = {
  configureWebpack: {
    resolve: {
      alias: {
        "@ant-design/icons/lib/dist$": path.resolve(__dirname, "./src/icons.js")
      }
    }
  }
};