YITH WooCommerce Product Add-ons Premium 4.18.0

* New: support for WooCommerce 8.1
* Update: YITH plugin framework
* Fix: use midnight time to disable days before current day
* Fix: fixed product price selector to replace new prices
* Fix: force add-on price to float for character length price calculation
* Fix: remove incorrect index when adding file add-ons on product page
* Fix: non-numeric value on cart
* Fix: options dependencies
* Dev: new filter 'yith_wapo_option_price_html'
* Dev: code refactor

* New: Support for WooCommerce 7.6
* Update: YITH plugin framework
* Fix: prevent to replace product price if product doesn't have blocks
* Fix: add text input length error message
* Fix: update product price when Composite product price is updated
* Fix: stripslashes function on restore product stock action

New: Support for WordPress 6.2
New: Support for WooCommerce 7.5
Update: YITH plugin framework
Update: updated language & JS files
Fix: prevent to replace product price if product doesn't have blocks available
Fix: price in the label with the customer currency
Fix: show message on max selection rules error
Fix: hide add to cart if add-ons type select is required
Fix: check text field length before form submit
Dev: new filter 'yith_wapo_allow_decimals_number'
Dev: new filter 'yith_wapo_uploads_button_text'