[Configuration] Custom font usage

[bdrtsky]

Not sure about best way to have default custom font for theme, while allowing user to overwrite it.

[bdrtsky]

@Tahul would love to have your thoughts on this topic

[Tahul]

We can now change the default font from Typography!

As Alpine uses it, you can change it from there:

tokens.config.ts:

defineTheme({
   font: {
      sans: '',
      serif: '',
      mono: ''
   }
})