Internal two way syncing a folder does not properly handle file creation and deletion inside that folder

### ⚠️ 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. Select a folder with a few files inside the Nextcloud app and enable sync for it.
2. Wait for initial sync.
3. Modify a file in another app.
4. Wait for next sync, change will be uploaded.
5. Modify a file in the web interface.
6. Wait for next sync, change will be downloaded.
7. Add a new file in the web interface.
8. Wait for next sync, new file will be downloaded.
9. Add a new file in the synced folder on Android.
10. Wait for next sync, new file will NOT be uploaded.
11. Delete a file in the web interface.
12. Wait for next sync, file will not be deleted on Android.
13. Delete a file on Android.
14. Wait for next sync, file will not be deleted on the server.

### Expected behaviour

File creation and deletion should be handled properly on both ends of the synchronization.

### Actual behaviour

File creation and deletion do not always work as expected.

### Android version

15

### Device brand and model

Google Pixel 8

### Stock or custom OS?

Custom (explain in "additional information")

### Nextcloud android app version

3.30.8

### Nextcloud server version

30.0.5

### Using a reverse proxy?

Yes

### Android logs

_No response_

### Server error logs

```bash

```

### Additional information

_No response_