Improve install_npm_packages based on Studio build process

[wojtekn]

From: https://github.com/Automattic/studio/pull/166/files#r1613715724

The install_npm_packages command installs NPM packages. It was a bit limited for Studio, so Studio used a custom shell script, with the notable differences:

• use patches/ directory to build a cache key
• use npm ci vs npm install

Let's review if it makes sense to bring those improvements upstream and use the main command in Studio.

Done is:

• We review if it's with porting Studio NPM install script to upstream