Sublime Text user experience

[timothee]

aha, so you're writing the extension in nim using `nim js -d:nodejs`, cool!
    
    
    exec "nim js -d:nodejs -d:release --outdir:out --checks:off --sourceMap 
src/nimvscode.nim"
    
    
    Run

That's actually yet another compelling use case for improving nodejs support, 
refs <https://github.com/nim-lang/Nim/pull/15475>