Order language names without regard to diacritics #183
Description
Currently, Icelandic is at end of the Latin-based languages list, because its autonym begins with a letter that has a diacritic: "íslenska".
It makes more sense for it to appear at the letter i, and to disregard the diacritic for collation.
(Also downstream: https://phabricator.wikimedia.org/T189970 .)