feature request: Subscribe to channel to get notified of new messages #9
Description
I have a special channel for system messages to the user and want to get notified of new messages.
It was simple to get working using the javascript API (https://docs.quickblox.com/docs/js-chat-messaging#subscribe-message-events)
However, the javascript SDK does not support more than one listener for new messages and using the same QB instances broke the main chat application.
I could create a new instance of QB, but I think some things still reference window.QB and it would be unnecessarily complex to maintain two instances. It looks like RemoteDataSource.ts handles multiple subscriptions and could be used to subscribe to a specific channel which is my use case. Adding a listener and publishing useDialogsViewModel might be a good option as it has other handy methods