Android version 3.31.0 does not work on Huawei P20 lite with Android 9

### ⚠️ 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

After updating Nextcloud for Android 3.30.8 to 3.31.0 the app claims, that the Nextcloud server version is outdated and needs to be upgraded.
If I sync files and conflicts are noticed, the conflict-dialog does not appear but only a black screen appeared instead.
If I tap in the app menu on "Uploads", a blackscreen appears, too. The Androis system icons (date, WLAN, Battery) remain visible.
I tried the version 3.31.0 from Google Play as well as from F-Droid.

Huawei P20 lite with Android 9
Nextcloud Hub 7 (28.0.14) on Univention Server 5.0-9

Requirements as witten in Google Play and F-Droid:
Minimum: NC 18 Server, Android 7.1 Nougat

Now I downgraded back to 3.30.8 from F-Droid (very poor possibility to downgrade - needed to seach for the .apk file)

### Expected behaviour

- Appearing dialogs in "Uploads"
- Working with Nextcloud Hub 7

### Actual behaviour

see above "Steps to reproduce"

### Android version

9

### Device brand and model

Huawei P20 lite

### Stock or custom OS?

Stock

### Nextcloud android app version

3.31.0

### Nextcloud server version

Nextcloud Hub 7 (28.0.14) on Univention Server 5.0-9

### Using a reverse proxy?

Yes

### Android logs

I was using the final version

### Server error logs

```bash
No corresponding log-entries.
```

### Additional information

_No response_