Style Loader

Any interest in adding a css style loader to webpack by default? I believe the dependency is:

npm install --save-dev css-loader

With the most basic rule added to webpack.config.js :

```
{
test: /\.css$/,
use: [ 'style-loader', 'css-loader' ]
}
```

Start with webpack.config.js and the project's dependency setup. Review whether css-loader and style-loader are available, then assess adding the CSS rule shown in the issue and confirm that the project builds with CSS imports.

Written by the indexing model from the issue text.