Wrong sort order for non-ASCII characters

### Please agree to the following

- [x] I have searched [existing issues](https://github.com/cryptomator/android/issues?q=) for duplicates
- [x] I agree to follow this project's [Code of Conduct](https://github.com/cryptomator/android/blob/develop/.github/CODE_OF_CONDUCT.md)

### Summary

Files or directories containing non-ASCII characters like German umlauts are not sorted correctly

### System Setup

```markdown
- Android: 16
- Cryptomator: 1.11.1
```

### Cloud Type

pCloud

### Steps to Reproduce

1. Create some directories: "Altersvorsorge", "Ärzte", "Banken", "Wohnen"
2. Look at the list of directories and sort "A-Z"

### Expected Behavior

The ordering should be:

- Altersvorsorge
- Ärzte
- Banken
- Wohnen

### Actual Behavior

The actual order is:

- Altersvorsorge
- Banken
- Wohnen
- Ärzte

### Reproducibility

Always

### Relevant Log Output

```shell

```

### Anything else?

_No response_