Fixes to get around null-safety and breaking firebase_auth changes

[tyler-jewell]

First of all - Thank-you! You don't realize how much time I wasted trying to find a simple, low-code implementation using firebase auth + provider. You nailed it.

While going through the tutorial, I had to make some changes to get around null-safety rules and also some changes to the firebase API. I have a branch ready I can push up so you can have for reference in case you want to add these changes. Just add me to the repo and I will push.

Thanks

[tadaspetra]

Can you just make a PR?

[tyler-jewell]

I am not able to push a branch to this repo, unless there is some other way?

[tadaspetra]

So for most open source repositories, you can "fork" it to your own. And then make updates, push the changes to your forked repository, and then set up a Pull Request to this repository

Let me know if you need help with it 😊