Switch to built-in Webpack asset management

Assets such as fonts, images, etc should be handled using the built-in Webpack asset manager, not the `file-loader`.

```js
{
	test: /\.(jpe?g|gif|png|svg|woff2?|ttf|eot|wav|mp3|mp4)(\?.*$|$)/,
	type: 'asset/resource'
}
```

Also, the bundles' file name should be changed to `dist/[NAME].[EXT]` to `[NAME].[EXT]`. This applies to both the JS and the CSS bundle.