The loading spinner restarts after a while

First of all, this is a very very very incredibly minor issue.

## Steps to reproduce
1. Add a Nextcloud Talk command with a very long processing time (I am calling a chat LLM via a local API, which usually returns the result after a few tens of seconds)
2. Call the command, see the loading spinner
3. After a few seconds it restarts (see video below)

https://github.com/nextcloud/talk-ios/assets/48513706/31b95d97-73ab-4c00-8bf8-0e06133ad824

### Expected behaviour
The spinner spins continuously.

### Actual behaviour
It restarts.

## Device information

**Device:** iPhone X

**iOS version:** 16.4.1 (a)

**Talk version:** 16.0.2

## Server information

**Nextcloud version:** (see admin overview page: `/index.php/settings/admin/overview`) 26.0.2

**Talk version:** (see apps admin page: `/index.php/settings/apps`) 16.0.3

**Custom Signaling server configured:** yes/no and version (see talk admin settings: `/index.php/settings/admin/talk#signaling_server`) no

**Custom TURN server configured:** yes/no (see talk admin settings: `/index.php/settings/admin/talk#turn_server`) yes

**Custom STUN server configured:** yes/no (see talk admin settings: `/index.php/settings/admin/talk#stun_server`) yes

### Server log (data/nextcloud.log)

```
Insert your server log here
```