Update package.json

[opsiv]

Use calling npm executable (e.g. pnpm) for emulator script

[adbenitez]

hi @opsiv, thanks a lot for your PR, but I changed the repo to be instead used with npm init (or npm create) that way a wizard can be started in the standard way from command line without needing to use github

closing this PR as it is now invalid, thanks a lot!