* Add grid block base class to handle rendering all grid blocks
Using code from the shortcode handler to create the query, subclass into newest product to show use
* Update preview content to match rendering from the new grid block handler
* Fix the categories query builder
* Update order of rating/price
* Remove center alignment
* Extract rating & button into separate functions
* Wrap the content in a link
* Add the current class names for better theme support
* Fix some styling in editor preview & frontend
* Add back the deprecated cols support for existing blocks
* Add multiple-rows class, style tweaks
* Switch Newest Products to dynamic rendering, deprecate existing shortcode method
* Add “On Sale” flag
* Switch “On Sale Products” to dynamic rendering
* Fix reusable block preview
* Add correct classes to On Sale Products
* Remove dynamic blocks from CSS hidden content rules
Content is not output to browser now, so we don’t need to hide it
* Fix undefined parameters
* Fix attributes for on sale
* Add deprecation comment, use more descriptive function name
* Addressing review feedback
* Update test: classnames have changed, image now wrapped in div
* Disable HTML editing for dynamic blocks
* Moved rendering logic into block library
* Remove unnecessary !important on styles
* Component: GridContentControl for controlling visibility of product content
* Add the content control to all grid blocks
* Use CSS to hide the content on the front end
* Fix missing translation functions
* Add a new LayoutControl component
* Use new LayoutControl to handle rows & columns settings
* Fix errors when rows or columns is empty (silently fall back to default to prevent breaking the block)
* Rename `LayoutControl` to `GridLayoutControl`
This lets us use the functionality of `register_block_type` to automatically enqueue the scripts and styles used by blocks in the editor, and eventually, styles on the frontend as well. Also adds cssnano to minify our CSS.