app-pouchdb-sync should emmit change and error events

[marcelojgarcia]

Description

It would be nice for app-pouchdb-sync element to emit events on change and error. We'd be able to perform tasks as query refresh, in case of change, or toast a message in case of error.

Expected outcome

On each change or error, element should emit events.

Actual outcome

No event emited, only log of events is available.

[benquan]

Was also looking for something like that. The database seems to be syncing just fine in the backend. but there is now way to access those changes.