chore: integrated xcarpentier#475 from kanimetov

chore: updated country code list

fix: was recycling old names

fix: added independent status

chore: integrated xcarpentier#475 from kanimetov

* the alpha scroll-to-a-letter thing works even in languages with many characters, with preferred countries, and with Åland
* search works with modern fuse, and will index against alternative names for the country
* buttons invalidate correctly when country code is changed (name and calling code were not updated)
* flag button still shows something even if all the button content options are off
* if search has no hits, text turns red and full list displays
* the side scroller no longer filters letters, it just jumps to list positions. the withAlphaFilter option has been removed, but will still toggle on/off the side scroller index if it is not explicitly set on or off.
* some async error handling