Stop writing window specific paths in vscode configuration (#42338)
Vscode `tsdk` configuration handles POSIX path even on Windows, so
there's no reason to write window-specific path to the configuration.
I've always had forward slash path in `tsdk` and work on windows and in
WSL, and that works.
https://github.com/oBusk/npm-diff.app/blob/f71e4671430373c2af6a88c3c13f7c437334ab8d/.vscode/settings.json#L3
Current solution will give a diff for people who have ran previous
versions on windows. We could update the check to allow windows if you
want to.