Results Component with some JS

I'm not sure about my take on those brackets on rounded corners of the category bars elements. Currently used :before and :after to make underlying element with slightly less rounded corners. Looks OK, but feels like I've invented s square-wheeled bicycle here. There should be some better solution, right? And my fetch() feels wrong somehow. Gotta work a bit more on using it. Rest of the JS is lacking data checking, I know :)