[Bug] Workplace Font dropdown freezes the whole app

### Bug Description

Upon clicking dropdown to select fonts, the application window freezes and remain unresponsive until the application closed.
Other dropdowns (like the Theme dropdown) work just fine.

Additionally, there are no new log messages present when the window freezing.

### How to Reproduce

1. Open Setting
2. Select "Workplace" tab
3. Click the Workplace Font dropdown
4. Application window freezes

### Expected Behavior

A popup should appear and application should not freeze.

### Operating System

Linux, Arch Linux, `appflowy-bin` package from AUR

### AppFlowy Version(s)

0.7.1

### Screenshots

https://github.com/user-attachments/assets/38fb3859-b87c-4683-aaf4-0bc6c09abe40

### Additional Context

_No response_