Tell the user if a patch is already installed

When I want to patch a CVE, this can be done by calling:
```
zypper patch --cve=CVE-2025-48384
```

Zypper will then install the required patch.

But when I call the above command the 2nd time, zypper only tells me:

```
Fix for CVE issue number CVE-2025-48384 was not found or is not needed.
```

This is really not helpful to the user as they really want to know, if that CVE is now patched or not.