Built-in font support

[NightshadeAurora]

Describe the feature / change

If Scribble uses json text, it should be possible to set the font of the text to one of the other built in fonts like SGA or Illageralt. Unfortunately this isn't possible in other text fields but it would be fun to use in books.

[chrrs]

Hi! Scribble uses formatting codes to make it work without a server-side mod, so this won't be possible unless Scribble adds a server-side part (see #103). There'll likely be unicode fonts you can use (#109), but the enchanting table font and others like that are unfortunately not possible for now.