More Visual UI for Generators

[DorkOrc]

Would be incredibly useful to have a visual demonstration of what you're building, above where the JSON is, for example: Idea of what is might look like:

• Crafting Recipes
  • All possible ways the crafting recipe allows the item to be crafted
  • For item tags/groups, it cycles through them
  • For item tags which are not recognised, perhaps it's just a question mark
• [Added] ~~Loot tables~~
  • ~~Brings up a single-chest UI with a random assortment of items from the loot table~~
  • ~~Has a lil 🎲 thing you can click to generate it again randomly~~
• Advancements
  • Shows what the icon looks like as well as what appears when you would hover over it
• Chat types
  • Shows what the chat might look like (for example, sender is a "Steve" and contents is "Hello, World")

Obvs doing graphics for the worldgen stuff is a whole other thing so I won't suggest that here lmao

[misode]

Thanks for all the suggestions! Some worldgen generators actually already have these visualizations. Click the blue play button

[misode]

Partly implemented in #293