Wrong sort order for non-ASCII characters

[windmueller]

• I have read the above note

What version of Round Sync are you using (About -> App version)?

2.5.6

What is your Android version, phone model and manufacturer?

Google Pixel 7

Which steps are required to reproduce this issue?

1. Create some directories: "Altersvorsorge", "Ärzte", "Banken", "Wohnen"
2. Look at the list of directories and sort "By name"
3. Observe that "Ärzte" is at the end of the list