changed catalog URL for Kiwix contents
Use the new kiwix-managed ideascube catalog instead of BSF's kiwix.yml one as most of its content are unavailable.
See ideascube/pibox-installer#159
Use the new kiwix-managed ideascube catalog instead of BSF's kiwix.yml one as most of its content are unavailable.
See ideascube/pibox-installer#159