Document files not appearing when attempting to upload

### ⚠️ Before posting ⚠️

- [x] This is a **bug**, not a question or an enhancement.
- [x] I've [searched for similar issues](https://github.com/nextcloud/android/issues) and didn't find a duplicate.
- [x] I've written a clear and descriptive title for this issue, not just "Bug" or "Crash".
- [x] I agree to follow Nextcloud's [Code of Conduct](https://nextcloud.com/contribute/code-of-conduct/).

### Steps to reproduce

1. Open NC app and go to upload files
2. Go into the directory where the files are held

### Expected behaviour

.pdf, .docx, .xlsx, etc., should be visible

### Actual behaviour

These files are not visible when going to upload a file

### Android version

14

### Device brand and model

Samsung Galaxy S22 Ultra

### Stock or custom OS?

Stock

### Nextcloud android app version

3.30.6

### Nextcloud server version

30.0.4

### Using a reverse proxy?

I don't know

### Android logs

_No response_

### Server error logs

```bash

```

### Additional information

Unable to post logs as logcat won't recognise my device being plugged into my PC.