* tgui: Yarn Berry (#53026)
This pull request upgrades Yarn to version 2 (also known as Yarn Berry).
* Update build validator
* Provide inferno in the root level package
* Remove type module from package.json
* Powershell build script
* tgui: Yarn Berry
Co-authored-by: Aleksej Komarov <stylemistake@gmail.com>