BookingWP - #1 WordPress Appointment Booking Plugin v5.2.2

* Feature       - Staff permissions: Rules set by staff now sectioned into minimal, standard and full, staff doesn't need that many options.
* Improvement   - ICS export not working for other calendars (only works for gCal). Issue #970.
* Improvement   - Updated all translations. Staff permission settings missing translations.
* Improvement   - Appointments edited in admin calendar should instantly sync to the Google calendar, when connected.
* Improvement   - Appointment creation modal now has slightly polised UX, less autoclosing/autoopening, better timing and spacing.
* Improvement   - Appointment creation modal and viewing modal should have a simple link to appointment edit page, no fancy redirects.
* Fix           - Staff permission for editing and creating products not working, but should grant staff access to all products.
* Fix           - Automatically assigned staff together issue when no staff assigned. Issue #1292.
* Fix           - Patch non-indexed path where showing sold out slots could trigger fatal error through filter.
* Fix           - Minimal CSS patch to prevent transition effect (added elsewhere) on datepicker back/forward buttons.
* Fix           - Patch to show status drodown correctly on appointment viewing modal when statuses have long translations.
* Fix           - Timezone change to UTC on frontend not working. Issue #1294.
* Fix           - Timezone text on frontend not changing when selecting default. Issue #1295.
* Fix           - Timezone overnight change not reflected on the calendar date picker. Issue #438.
* Fix           - Appointment vierwing modal shows wrong duration for daily or monthly duration types. Issue #1296.
* Fix           - Timezone should also be added to daily and monthly durations during creation or editing in admin calendar. Issue #1296.
* Fix           - When product is selected in modal, end date/time is not adjusted based on product duration.
* Fix           - When staff creates appointment in modal, they should be assigned to the product, not any other staff member.
* Fix           - When staff is logged in, admin calendar should server preload appointment for the staff, but loads the via API (slower).
* Fix           - Fix get_slots_availability to expand DB query range by padding. Issue #1256.
* Fix           - Fix indexed path to include padded range more strictly. Issue #1256.