is not supported resolving ES modules

when i us remote at main.js
```js
import remote from '@electron/remote/main';
console.log(111, remote);
```

i got like this:
```shell
App threw an error during load
Error [ERR_UNSUPPORTED_DIR_IMPORT]: Directory import '/electron-demo/node_modules/@electron/remote/main' is not supported resolving ES modules imported from /electron-demo/src/index.js
Did you mean to import "@electron/remote/main/index.js"?
```