Google Calendar conflicts respected in POS and customer accounts

Booking from POS and rescheduling from a customer account now check the staff member's connected Google Calendar before offering a time. Both surfaces used to ignore it, so they showed times the staff member was already busy for, and a customer rescheduling could book over an external appointment. This applies to staff who have a Google Calendar linked to their profile, which is a Pro feature. The storefront booking form already worked this way and is unchanged.