`npm install` fails with current vscode version

[peacememories]

I just tried to build the extension locally because I wanted to add a feature, and apparently the version of vscode the extension currently depends on causes npm install to fail. If I interpret the error correctly it is because vscode downloads some type definitions on install and either doesn't find the version anymore, or tries to load the latest one which is incompatible - I'm not sure which. Installing the latest vscode version seems to fix the issue, though I have not checked whether this breaks anything, and also apparently it completely reformats the package.json, which makes it a bit awkward to do a pull request