Search term is not sufficiently cleared

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---

### Steps to reproduce
1. go to a feed
2. enter a search term and search
3. tap on one of the search results to view the entry
4. swipe back to return to feed
5. go to "All unread" list
6. swipe down to reload

### Expected behaviour
- all unread feed items should be shown

### Actual behaviour
- only search results from all feeds are shown for the search term entered in step 2 above, including feed items that are already read
- the search term is shown in the search field at the top

### Server configuration

**Web server:** not sure, hosted instance

**Database:** not sure, hosted instance

**PHP version:** not sure, hosted instance

**Nextcloud version:** Nextcloud Hub 10 (31.0.7)

List of activated apps

```
If you have access to your command line run e.g.:
sudo -u www-data php occ app:list
from within your Nextcloud installation folder
```

Nextcloud configuration

```
If you have access to your command line run e.g.:
sudo -u www-data php occ config:list system
from within your Nextcloud installation folder
```

### Browser

**Browser name:** irrelevant

**Browser version:** irrelevant

**Operating system:** Android 16

Browser log

```
Insert your browser log here, this could for example include:
a) The javascript console log
b) The network log
c) ...
```

Reproduce the issue in the Android app using the listed steps, then trace how the search term and selected feed are retained when returning to the feed and opening “All unread.” Done means reloading “All unread” clears the search state, shows all unread feed items, and no longer includes already-read search results.

Written by the indexing model from the issue text.