WooPack - Beaver Builder Addon 1.5.7.1

* Enahancement: Updated fields to match BB 2.2 UI
* Enahancement: Product Grid - Added filter by hash parameter in URL
* Enahancement: Product Grid & Carousel - Used placeholder image from WooCommerce settings if available
* Enahancement: Cart - Added Width field for quantity input
* Fix: Product Grid - Layout break when used inside Advanced Tabs module of PowerPack
* Fix: Product Grid - Layout break on enabling short product description
* Fix: Minor CSS issues

* Enhancement: Product Category - Added "Default" as basic style option
* Enhancement: Single Product - Added field connection to product dropdown
* Enhancement: Add to Cart - Added field connection to product dropdown
* Fix: Cart - Button styling issue
* Fix: Multiple product variations related issues

* Fix: Removed WooCommerce plugin dependency from WooPack admin settings