Add monaco integration in playground

[adelhult]

Is your feature request related to a problem? Please describe.
It would be really nice to have syntax highlighting or some other of the nice features that monaco supports in the playground. See: https://microsoft.github.io/monaco-editor/playground.html?source=v0.38.0#example-creating-the-editor-hello-world a good starting point our code is looking at Playground.tsx.

Describe the solution you'd like
Feel free to split this into multiple issues, here are some suggestions:

• Syntax highlighting (using Monarch grammar or porting our textmate file if possible?)
• Hover-over documentation for modules
• Inlay-hints with names for positional argument
• Suggestions/auto-complete for modules and or module arguments.