Keyboard layout indicator doesn’t update when switching layouts (Alt+Shift)

### What Happened?

When I change the keyboard layout with Alt + Shift, the actual typing layout switches correctly, but the language indicator in the panel does not update. The indicator remains stuck on the previous layout.

### Steps to Reproduce

Add at least two input sources (e.g., English (US) and Greek).
Use the shortcut Alt + Shift to switch layouts while typing in any app (Terminal, Browser, Editor, etc.).
Observe the language indicator in the top panel.

### Expected Behavior

The panel’s language indicator should update immediately to reflect the newly selected layout.

### OS Version

8.x (Circe)

### OS Architecture

amd64 (on most hardwares)

### Session Type

Secure Session (Wayland)

### Software Version

Latest release (I have run all updates)

### Log Output

```shell

```

### Hardware Info

_No response_