WooCommerce Bookings 2.1.9

* Fix - Bookings overwriting notes made directly on Google Calendar on subsquent syncs.
* Fix - wc_bookings_calendar_default_to_current_date filter not working when using availability rules
* Fix - Customer defined blocks by hour durations buffering by incorrect amounts.
* Fix - Remove activation notice when plugin is deactivated.
* Fix - Global and product rule not overriding resource rules when calling get_blocks_in_range directly
* Fix - Incorrect remaining count on blocks when resources overlap and are set to automatically assigned.

* Add - Allow price overriding for all Bookings by adding equals operator in the costs range.
* Add - Include number of persons in Booking Calendar Monthly view and Daily view.
* Fix - Resource dropdown should only display the costs related to the resource.
* Fix - Prevent deleting products or resources that have bookings associated with them.
* Fix - "Booked By" column is empty if there's no email address specified for the customer.
* Fix - Restrict Days not working when site is translated.
* Fix - Incorrect remaining count on blocks when resources overlap.
* Fix - Calendar not defaulting to first available date with shared resource.
* Tweak - Add CSS class to the first and the last date in the bookable-range.
* Tweak - Clearer text when customer selects a range of dates.
* Tweak - Add Onboarding notice.
* Tweak - Calendar page title.
* Tweak - Improve error feedback on calendar timepicker.
* Tweak - Input time fields when editing existing booking should be of type "time".
* Tweak - Change "Create Booking" to "Add Booking".
* Tweak - Rename `base_cost` methods to `block_cost` on bookable products to reflect the proper fields.
* Tweak - Update sanity check notices to be warnings.

* Fix - Customer cancelled bookings were not triggering cancellation emails.
* Fix - Incorrect text domain for translation.
* Fix - Incorrect links for docs and support.
* Fix - Bookings Calendar not functioning properly for RTL languages.
* Fix - Random availability problem.
* Fix - Calendar calculation wasn't taking into consideration days before actual booking for duration of type days.
* Fix - Data manipulation allows bookings outside of defined blocks.
* Fix - Orders with multiple cancelled bookings still show as "Completed".
* Fix - PHP notice when adding bookable product that requires confirmation to the cart.
* Tweak - Pagination of "My Bookings".
* Tweak - Switch order of operations for `status_transitioned_handler`.
* Tweak - Time in admin calendar day view now uses WordPress time format.
* Tweak - Updated templates to have proper/updated headers.