PNPM + Cross-env

[koxx12-dev]

Hello i replaced npm with pnpm which is a objectively a superior package manager both in speed/performance and space usage (might as well also throw this in), also replaced that hacky env platform specific thing with cross-env, also updated some dependencies (npm was using the same versions as here but from lockfile instead of packages.json)

[TBHGodPro]

1. you can't just update libraries how you like, some libraries updates' can mess up the whole proxy, especially when you update core libraries for the proxy
2. if users do not have pnpm installed, they would have to install it to use the proxy, which adds another step to the whole process

[koxx12-dev]

1. I technically didnt update libraries, i just updated package.json, these versions where already used as npm it got them directly from package-lock.json instead of package.json
2. ok that indeed does make sense, i didnt think about a typical hypixel player

[Naibuu]

1. balls
2. balls