Major LSP refactoring

[MaxStalker]

There were multiple race-conditions between Language Client, Server, Monaco Editor and React state, which lead to a series of tricky to debug errors.

• Client/Server communication is moved into separate context for dissecting the problem and later ease of use
• Automatically update code, when switching between editors to pickup latest changes in contracts and pass them to Language Server for verification
• Refactored data handling, styles and components into separate files for better DevEx

Planned for next release:

• Updated Language Server package, which now does not cache

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[kerrywei]

can we provide a test plan in the PR description? such a big change deserves thorough testing

[MaxStalker]

can we provide a test plan in the PR description? such a big change deserves thorough testing

That's a really good point. I will provide test plan, when I finish last two issues I've spotted:

• for some reason language server is taking old code to get a list of arguments
• sometimes we see that LS can't find model on the editor (probably some severed link during updated)

[MaxStalker]

Alright!
The issues should be resolved now :)