* refactor slider component to be functional
* Refactor RecommendedExtensions
* Refactor KnowledgeBase
* Refactor API to account for component location changes and categories
* Fix missing param description
* Remove unnessary use
* Pass down the category of the received plugins.
* Store the recommended plugins for the different categories separately.
* Pass down the category.
* Add new functions to get by category.
* set categories
* Handle new object for posts and recommendations
* Update tests
* Finish off implementing category param for data store resolvers
* Update js tests
* Fix incorrect reference to kb component
Co-authored-by: Dan Bitzer <danielbitzer@gmail.com>