No icon in the system update notifications

### What Happened?

I don't see the icon of System Settings in the update notifications from settings-daemon in recent Early Access.

### Steps to Reproduce

1. Log in
2. Wait for the update notifications from settings-daemon

### Expected Behavior

The update notification from settings-daemon should have some icon.

### OS Version

8.x (Circe)

### OS Architecture

arm64 (on Raspberry Pi, Apple Silicon, etc.)

### Session Type

Secure Session (Wayland, This is the default)

### Software Version

Early Access or Compiled from git

### Log Output

```shell

```

### Hardware Info

_No response_