Snackager having issues with exports in package files

[byCedric]

Summary

Snackager is having some issues with the newer exports as opposed to main. This seems to be problematic for firebase and a few other libraries.

Unfortunately, this is a big change and requires a lot of changes in how Snackager is bundling things, and how the Website is resolving nested package content (e.g. import('firebase/app'))

What platform(s) does this occur on?

Android, iOS, Web

SDK Version

46

Reproducible demo or steps to reproduce from a blank project

TBD

[byCedric]

@mmomtchev already did some work to make Snackager bundle type: module packages, PR #302