Changing instant upload directory doesn't affect uploads in progress

### ⚠️ 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 files to instantly upload to a given directory.
2. While the upload is in progress, change the destination directory.

### Expected behaviour

The existing upload will either get canceled or files will be put in the new directory (including previously uploaded ones).

### Actual behaviour

Existing uploads will continue to go into the previous directory. This combined with other bug preventing cancellation of large number of uploaded files, means there's no way to put the files into the new directory.

### Android version

16

### Device brand and model

Galaxy Fold 5

### Stock or custom OS?

Stock

### Nextcloud android app version

3.34.1

### Nextcloud server version

32.0.3

### Using a reverse proxy?

Yes

### Android logs

_No response_

### Server error logs

```bash

```

### Additional information

_No response_