configureWatchOptions(callback) {
        webpackConfig.configureWatchOptions(callback);

        return this;
    }
Configure the watchOptions and devServer.watchOptions configuration.

https://webpack.js.org/configuration/watch/
https://webpack.js.org/configuration/dev-server/#devserver-watchoptions-

```
Encore.configureWatchOptions(function(watchOptions) {
    // change the configuration
    watchOptions.poll = 250; // useful when running inside a Virtual Machine
});
```

@param {OptionsCallback<Exclude<webpack.Configuration['watchOptions'], undefined>>} callback
@returns {Encore}