JetAppointments Booking for Elementor 2.1.8

* ADD: `jet-apb/page/{$page_slug}/capability` filter to change access capability to Appointments admin page;
* ADD: `'jet-apb/capability` filter to change access capability to appropraite appointments action;
* ADD: `jet-apb/current-user-can` filter to add custom access validation to appropraite appointments action;
* ADD: `Service Slot Duplicating Across Providers` option to make the same slot available for each provider separately or single slot for all providers;
* UPD: Allow to override service custom schedule's Days Off with General Settings's Days Off;
* FIX: Prevent errors when user tries to book appointment, but not selected time in timepicker.

* UPD: Allow to change dates format in the apoointments list in the admin dashboard;
* FIX: Allow multi bookings from the admin dashboard;
* FIX: Update user local date and time after update appointment from the admin dashboard;
* FIX: Synch translation files;
* FIX: Next year appointments in the timepicke mode on mobile devices;
* FIX: Elementor Global styles on the cancellation page with custom template.

* ADD: Allow to set capacity for recurring appointments;
* ADD: Allow to send the same Zoom link for the same slot when capacity option is enabled;
* UPD: Set order by time for appointments in calendar view;
* UPD: Allow to change "Appointment time already taken" and "Appointment details" with custom labels;
* FIX: Preventtriggering workflow events for cancelled appointments;
* FIX: Send Email Workflow Duplicate Notifications in some cases.