As mentioned, all our filters are going to be created from the products in the current category. This means if there are no products made by IceToolz, it won't appear as an available filter.
To begin with, open the ProductFiltering.js component file. Our product filtering is going to go in our sidebar, so change the component definition from Vue.component to an object. We still want our categories to display after the filtering, so add the ListCategories component as a declared component within ProductFiltering. Add a template key and include the <list-categories> component:
const ProductFiltering = { name: 'ProductFiltering', template: `<div> <list-categories /> </div>`, components: { ListCategories ...
