* Add core breakpoint 480px, remove non-core breakpoints
* Add the optional operator & save callback
* Add the catOperator as a valid attribute
* Enable cat operator for Products by Category
* Add cat_operator support the products API endpoint
* Enable cat_operator in the shortcode and query utils
* Pluralize the “nothing found” string if we have multiple categories
* Fix style in the inspector panel
* Add category operator support to the Best Sellers product block
* Add cat_operator support to On Sale Products block
* Update label & margin
* Move from a JS file per block registration to one file registering all blocks
This will let webpack combine shared libraries, like gridicons
* Move global block settings to the “before all scripts” section
These shouldn’t be tied to a specific block file, since they’re used across all blocks
* Register both block types
We can also remove the scripts, since we enqueue these below
* Update getShortcode & getQuery to handle different block types
* Pass block type name to getQuery
* Update shared attributes - edit_mode is not a universal option, but categories will be
Categories is shared, but orderby is not
* Add “Best Selling Products” block
* Add a shared class name for product grid blocks
* Fix failing tests
Kelly Dwan