Uploading files fails in "on device" menu

### Steps to reproduce
1. Click three bar menu on the top left in nextcloud
2. Click "on device"
3. click add button, choose any picture, and upload,
4. It will fail

### Expected behaviour
- No pictures are uploaded

### Actual behaviour
- Pictures should be uploaded

### Can you reproduce this problem on https://try.nextcloud.com?
- Please create a test demo account and see if this still happens there. yes
- If yes, please open up a bug report, yes
- If not, please verify server setup and ask for help on forum

### Environment data
Android version: 12

Device model: MI 11 Ultra

Stock or customized system:

Nextcloud app version: 1.39.1

Uploading nextcloud-03.mp4…

Nextcloud server version:

Reverse proxy:

### Logs
#### Web server error log
```
Insert your webserver log here
```

#### Nextcloud log (data/nextcloud.log)
```
Insert your Nextcloud log here
```
**NOTE:** Be super sure to remove sensitive data like passwords, note that everybody can look here! You can use the Issue Template application to prefill some of the required information: https://apps.nextcloud.com/apps/issuetemplate