remove tabIndex from AnchoredOverlay

Author: siddharthkp

src/AnchoredOverlay/AnchoredOverlay.tsx

@@ -166,7 +166,6 @@ export const AnchoredOverlay: React.FC<AnchoredOverlayProps> = ({
           id: anchorId,
           'aria-haspopup': 'true',
           'aria-expanded': open ? 'true' : undefined,
-          tabIndex: 0,
           onClick: onAnchorClick,
           onKeyDown: onAnchorKeyDown
         })}