[Bug] Japanese input problems on MacOS

### Bug Description

When inputting Japanese on MacOS, if the input string contains Kanji character, the part that has been converted to kanji will be overwritten in the later part.

### How to Reproduce

Input on keyboard: 入力テスト (Means Input test)
Type "nyuuryokutesuto" and type space to show candidates of convert Kanji, and type enter to confirm input

Actual input on app as: テストテスト
The part 入力(means Input) is orverwritten in the later part "テスト" (means Test)

### Expected Behavior

The input characters are input without being overwritten.

### Operating System

MacOS

### AppFlowy Version(s)

Every version include latest 0.7.1

### Screenshots

https://github.com/user-attachments/assets/f008b449-b38b-4a22-89eb-54a1d35235a1

### Additional Context

_No response_