Conflict Resolve Dialog Shows Incorrect Thumbnail and File List Does Not Reflect Selected Local File

### ⚠️ 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. Trigger a file conflict scenario (e.g., uploading a file that already exists remotely).
2. Observe the file conflict dialog — the thumbnail preview shown is incorrect or mismatched.
3. Select the local file option to resolve the conflict.
4. Navigate back to the file list view.
5. Repeat same scenario and again select the local file
6. File list not displays correct item.

### Expected behaviour

The file conflict dialog should display the correct thumbnail preview for both local and remote files.

Upon selecting the local file, the file list should update correctly.

### Actual behaviour

The file conflict dialog shows an incorrect thumbnail.

After selecting the local file, the corresponding file is not correctly updated in the file list.

### Android version

15

### Device brand and model

Android Emulator

### Stock or custom OS?

Stock

### Nextcloud android app version

3.31.0

### Nextcloud server version

31.0.0

### Using a reverse proxy?

I don't know

### Android logs

_No response_

### Server error logs

```bash

```

### Additional information

_No response_