Cross icon should not show when the search view field is empty.

### ⚠️ 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

- Open Text Preview.
- Click on search icon.
- Now see cross icon is showing even if there's no text.
- Clicking on it would make things out of sync and weird.

https://github.com/nextcloud/android/assets/111801812/b9af2a87-b245-4639-abe6-60c7aac3d4fd

### Expected behaviour

- Only show cross icon when text field has some text.
- It should only show when there's some text because it is used for clearing the text

### Actual behaviour

- Showing cross icon even if field is empty.

### Android version

13

### Device brand and model

Oneplus 9RT

### Stock or custom OS?

Stock

### Nextcloud android app version

-

### Nextcloud server version

-

### Using a reverse proxy?

I don't know

### Android logs

_No response_

### Server error logs

_No response_

### Additional information

_No response_