I don’t want the search bar to open the categories side bar. (As is it now when you try to search the side bar opens and when you click into empty space the side bar still stays)
Sorry to say but we didn’t get your concern correctly. As far as, we have checked the Search on your Site there isn’t any sidebar being opened: https://snipboard.io/8DQz6A.jpg
Could you please elaborate your concern more with some useful Screenshots and the Page URLs so that we can better understand and assist you accordingly.