More detailed documentation / getting started guide

[Derpius]

• We have an X in Y minutes style guide here: https://tasbox.dev/docs/guides/moonjuice-quickstart
  • This is only really relevant if you already know how to program, and really only if you've used similar languages like Lua
• We should create a section for MoonJuice in the tasbox docs, covering:
  • Setting up a development environment (installing language support for , currently just VSCode)
  • Creating a TASBox package (currently the only way to run MoonJuice)
  • Walk through creating a simple program incl. imports/exports across files
• We should still have the quickstart guide, and sign-post people to one or the other based on whether they have prior programming experience