fix: add PROJECT_ROOT variable to pass launchPackager

[AliRezaBeigy]

Summary:

These days I working on a monorepo project, I try to prevent using "nohoise" option There is a problem in react-native when it trying to run cli.js in launchPackager.bat file, react-native go two folders up then run cli.js If you have a monorepo project folder tree is like this:

- project
    - packages
       - appA
       - appB
       - libA
    - node_modules
        - react-native
        - metro
        - ...

In this case, it should move to PROJECT_ROOT and then run cli.js

I fix the launchPackager.bat too, If this pull request is accepted, I will create a pull request for react-native too.

Test Plan:

I tested it with react-native change locally, this change has no effect on any project because I add a variable for further use.

[charkcl]

any luck with this PR please? I am also working with a mono repo whos having the same problem:(

[AliRezaBeigy]

sorry @charkcl, this weekend I have a tough and big exam, I will try to complete this pull request soon

[AliRezaBeigy]

@thymikee could you please take a look at this pr?

[AliRezaBeigy]

@thymikee sorry for linter, this time I fix linter this line by running following command

> npm run linter --fix

[AliRezaBeigy]

@thymikee Is it possible that this request will be merged?

[github-actions[bot]]

There hasn't been any activity on this pull request in the past 3 months, so it has been marked as stale and it will be closed automatically if no further activity occurs in the next 7 days.