- Fixes coder#7018

- vscode: Seems like you are using `yarn` which is not supported in this repo any more, please use `npm i` instead.

This is to match VS Code.  We were already partially using npm for the
releases so this is some nice alignment.

This was complaining on every unit test.

I was having a bunch of dependency conflicts and eslint seemed to be the
culprit so I just removed it and set it up again, since it seems things
have changed quite a bit.

I was getting oom when running the unit tests...updating seems to work.

The new pre-install script was being included, which is dev-only.

This was always the intent; did not realize jq's merge was recursive.

This appears to be conflicting with the root dependencies.

npm does not let you run binaries like yarn does, as far as I know.

Fixes the icons and fetching modules from the browser when behind a
reverse proxy.