Store not allowing angular files in package. How to copy angular extension files via manifest.php

I have few angular files in my package which I want to upload via module loader. How to copy it via manifest.php. Suitecrm store is not accepting angular files as it’s outside root folder.

With suitecrm 8 our root folder is legacy folder and our extension files needs to be copied outside it.

Can anyone help me with it. I am completely blocked