Appointment calendar

Containers for displaying the calendar of record selection for the booking module

If the container has the tag #appointment_calendar, then inside this container in the constructor there will be a calendar for selecting an entry for the Appointment module. The template inside this container can contain any information, during the build it will be replaced with a calendar. Important - before showing the calendar in the logic of the program, the service and provider must already be selected beforehand, otherwise the calendar will not be shown.