Use ESM versions of Monaco

[ishitatsuyuki]

microsoft/monaco-editor#18 has been resolved; we may benefit from ESM by bundling them into one bundle, instead of doing XHR for various code files.

[akosyakov]

It depends on #1539.

[AlexTugarev]

let's await the solution for microsoft/monaco-editor#850

[JonasHelming]

@tsmaeder : Is this even relevant anymore?

[tsmaeder]

@JonasHelming t.b.h, I have no idea.

[colin-grant-work]

@JonasHelming, @tsmaeder, I believe what's referred to here is the ability to bundle Monaco using Webpack rather than our current monaco-loader which uses VSCode's loader which (I think) loads the modules asynchronously by making separate requests for each file it discovers that it needs.

This issue is still relevant, and we may want to think about having some sort of epic about improving our Monaco consumption / simplifying Monaco uplifts:

• Updating the documentation (minimum)
• Consuming Monaco via Webpack
• Automating the generation of this file or (much better) eliminating that file in favor of typings coming from the Monaco package.

[colin-grant-work]

I believe that with the last few Monaco uplifts, we've done all the things that I described above, so I think this ticket is ready to be closed.