* Save attribute terms per attribute, so we don’t need to do duplicate API requests for previously fetched terms. Add spinner to loading items.
* Add count to API response
* Use terms count in displaying attribute type
* Update attribute selection code to collapse already-selected attributes
* Add a chevron icon indicating open-able attributes
* Center the loading indicator
* Remove count from attribute type & re-add it to the terms themselves
* Add “attribute selection” step before allowing terms to be selected
* Update query builder
* Use shortcode to render block
* Styling for child list items
* Add initial attribute selector control
* Make the attribute group name unselectable
* Update selected map to reflect attribute syntax
* Add the attributes selector to the product category block
* Update copy-paste comment
* Update variable name to be more clear
* Move & rename the attribute selector in Products by Category
* Reorganize the API calls to fetch attributes + attribute terms
Kelly Dwan