Changing active project in one window changes it in both

### What Happened?

Attempting to work with different active projects in two windows was not possible since they are synchronized via settings.

### Steps to Reproduce

Open two windows
Change the active project in one window
Observe it changes in the other

### Expected Behavior

It should be possible to work with two different active projects in different windows

### 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_

No file, test, or entry point is named. Reproduce the issue by opening two windows and changing the active project in one; trace the settings synchronization between windows, and consider the work done when each window can retain a different active project.

Scritto dal modello di indicizzazione a partire dal testo della issue.