Support Firebase JS SDK v9 and v10

[MartinXPN]

Is your feature request related to a problem? Please describe.
It's been more than 2 years since the v9 SDK was released. It's a shame that FirebaseUI Web is still not fully compatible with it.

Describe the solution you'd like
It would be great to fully support the latest Firebase JavaScript SDK (v10)

Describe alternatives you've considered
Using the compt version is not a great solution as it prevents us from all the benefits the latest SDKs provide (like tree-shaking and smaller bundle size).

Additional context
Would be great to see more active development and better support for the latest versions.

[jhuleatt]

Hi @MartinXPN, we definitely agree and are looking into this. Switching to the modular versions of the Firebase SDK will require a pretty thorough overhaul of the library, so we're still investigating how to make that change and if there are any tooling or API changes we'd like to make at the same time.

[qubitme]

Hey @jhuleatt, are there any specific milestones in place other than some of you guys 'looking into this'? If so, could you please provide more information?

[ribrdb]

Closure Library and MDL are both also deprecated, which this project uses for its UI components. It seems like a total re-write might be necessary.

[pfei5]

@jhuleatt this library is still officially recommended in the firebase auth docs. From reading through the issues it seems that the future of this library is, at best, unclear. There has been no release for over a year. Could you or someone else make a statement about where development is heading and what we can expect and when?
Thank you kindly