BookingWP - WooCommerce Appointments 4.19.0

* Improvement - Compatibility check with WooCommerce TM Extra Product Options 6.3.2.
* Improvement - Compatibility with WooCommerce 8.2.
* Improvement - Updated Product Add-ons to 6.5.0.
* Improvement - Better integration with Product Add-ons blocks.
* Improvement - Updated all translations. Added lots on new strings.
* Fix - Additional checks to make sure only appointments are rendered in templates.

* Improvement - Compatibility with WordPress 6.3.
* Fix - Some addons missing closing DIV element - breaks layout of the site.
* Fix - gCal for staff not working.

* Improvement - Hidden input forms don't need a label.
* Improvement - Prevent quantity editing for appointable products.
* Fix - Adding appointment in admin to existing order not working.
* Fix - Adding appointment in admin redirect is wrong.