Buttons are interactive controls and thus focusable. If the button role is added to an element
that is not focusable by itself (such as , 
 or 
) then, the tabindex attribute has
to be used to make the button focusable.

 handleSelect(filter)} 
  role="button"
  tabIndex={0}
>
  {filter.name}


The HTML attribute tabindex corresponds to the attribute tabIndex in React.