Use Online With Authentication

[okdistribute]

We want to demonstrate the best practices for using the Online With Authentication identity, but still without syncing to the cloud.

Please look at the skyservice app for a reference implementation that also uses OnlineWithAuthentication.

Use this app on the portal: https://portal.ditto.live/ditto/chat/settings

[kndoshn]

Android should be done.

@magicwave Can you work on this issue since this repo is already public?

[okdistribute]

Customers want a version of this demo with cloud sync as well.