[Bug] korean letters were all broken.

### Bug Description

When typing in Korean, I noticed that the letters were all broken.
It looks like every letter is typed multiple times.

### How to Reproduce

Install the latest version of appflowy for windows

### Expected Behavior

The letters must be entered correctly.
This is not an issue with the Flutter SDK itself, as other Flutter apps display Korean correctly as shown in the screenshot below.


### Operating System

Windows 10

### AppFlowy Version(s)

0.2.4

### Screenshots


### Additional Context

_No response_