WooCommerce Bookings 2.2.0

* Fix - Add duration limit unit with max/min duration notice.
* Fix - Add product information in the cancel email.
* Fix - Add-Ons info in the Pending Confirmation email.
* Fix - Added min-width to date picker and date range fields.
* Fix - Booking events status can not be recognized when looking at the calendar(s).
* Fix - Booking resources and persons toggle button is closing product data tab.
* Fix - Bump date line down in the admin calendar so it's easier to read .
* Fix - Calendar availability incorrect if customers timezone changes date. .
* Fix - Calendar has warnings if view is 'Month' selected.
* Fix - Custom availability rules with higher priority to override Google Calendar events.
* Fix - Deprecated function being used: `woocommerce_before_cart_item_quantity_zero`.
* Fix - Enhance resource cost unit label.
* Fix - Ensure end time and start time fields don't overlap in admin bookings view.
* Fix - Fix/3057 - Adds function to set selected month. Fix for highlighted month disappearing when clicking outside calendar.
* Fix - Fix: Inconsistencies in start times when resources are assigned to bookable products.
* Fix - Fix: Memberships discounts are not applied to the booking cost preview on the product's page (only in cart).
* Fix - Hide past global availabilities from settings.
* Fix - Overlapping resource availability - Incorrect slot display in the front-end.
* Fix - The default parameter is not used in the `WC_Bookings_CPT::custom_columns` hook.
* Fix - UI broken due to Booking product title on Booking >Calendar.
* Fix - Using start of week setting.
* Tweak - Cleanup of `was-in-cart` bookings.
* Tweak - WC 4.7 compatibility.
* Tweak - WP 5.9 compatibility.

* Fix - Include `was-in-cart` bookings to database cleanup tool.
* Tweak - WC 5.8 compatibility.
* Tweak - WP 5.8 compatibility.

* Fix - Include `was-in-cart` bookings to database cleanup tool.
* Tweak - WC 5.8 compatibility.
* Tweak - WP 5.8 compatibility.