Better scheduling and reporting for Announcements

Announcements picked up scheduling, clearer category subscriptions, better engagement reporting and navigation that makes sense.

Our Announcements feature for enterprise customers keeps moving. This round added and sharpened the tools a peak body needs to plan communications without doing it all by hand: better scheduling, clearer control over which categories people are subscribed to, improved engagement reporting, and cleaner navigation.

That makes it easier to send the right message to the right people, and to work out afterwards whether it landed.