[bug] JSON转义工具中鼠标不跟手的问题反馈

**Describe the bug**
JSON转义工具中，鼠标的实际位置与表现的位置有较大偏差

**Screenshots**

<img width="764" height="771" alt="Image" src="https://github.com/user-attachments/assets/2c806a9e-e10b-4eaa-9fcb-bc693576d0a5" />

**Information**
 - Platform: windows
 - OS: Windows11 25H2
 - Arch: x86-64
 - App Version: 3.1.2(196)
