when clicking grant access no network connection is made

### ⚠️ 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

Hi,

I'm able to reproduce this 100% of the time

1. use your android browser to log into your nextcloud instance
2. close your browser
3. open nextcloud android app
4. press log in
5. provide server address
6. tap on the right arrow ->
7. your browser opens prompting you to log in ->
8. tap log in ->
9. launch `docker logs nextcloud-app-1 -f` on your server
10. tap grant access -> on your android
11. verify that there are no queries being made to your nextcloud
12. verify that the grant access spinny thing keeps spinning forever

nextcloud version: 32.0.3 (somewhat slow but works in a desktop browser)
nextcloud app version: 3.34.1 (installed from f-droid)

### Expected behaviour

android client should eventually log in

### Actual behaviour

as per steps 11 and 12
android client never logs in

### Android version

15 (lineage 22.2)

### Device brand and model

xiaomi note 9 pro (joyeuse)

### Stock or custom OS?

Custom (explain in "additional information")

### 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

there are literally 0 lines generated when I click that button. as long I don't touch anything there are no log lines generated at all

### Additional information

lineage 22.2