CSS live reload is not functioning with a scoped package name

[AmauryD]

First of all, thanks for the hard work !

The live reload feature for CSS changes is not working as expected when using a scoped package. Updates to styles are not reflected in real-time. I need to restart Ember for changes to take effect.

Here is a reproduction:

I just made an ember new @scoped/project --embroider --typescript and added some css.

https://github.com/AmauryD/ember-scoped-package-bug

Using broccoli (app.toTree()) works as expected.

Thank you.