Support Apple Touch Icons

[uxder]

Basic icons are currently supported but should we have a way to defined multiple sizes and apple-touch-icons?

<link rel="apple-touch-icon" sizes="180x180" href="/apple-touch-icon.png">
<link rel="icon" type="image/png" sizes="32x32" href="/favicon-32x32.png">
<link rel="icon" type="image/png" sizes="16x16" href="/favicon-16x16.png">

https://github.com/blinkk/amagaki-plugin-page-builder/blob/main/src/page-builder.ts#L400