Sorting doesn't honor Danish characters

[martinrosenauer]

First of all, thanks for a great card. However I'm seeing an issue when sorting on strings with Danish (and probably other special chars) characters. In the attached example the "Æbler" is supposed to be after "Appelsinjuice" as ÆØÅ is at the end of the alphabet (e.g. after A-Z).

This happens with
sort_by:
- name+