Reduce sync poll frequency, cost
Hackily kick logged out users out of synchronization status check loop
Revert "Reduce sync poll frequency, cost"

This reverts commit 1daafc63ae75c1dad1d58098e856dc7d03f0b042.
Remove old news from dashboard.
Rename ServiceRecordIDsForPartialSyncTrigger -> ExternalIDsForPartialSyncTrigger
Kick logged-out users from dashboard in a less hacky way.
I checked the weather forecast
Or, rather, that the End of Days is upon us?