[BUG] Markdown default editor setting cannot be saved

**Describe the bug**
It seems like the bug has not been resolved
https://github.com/shd101wyy/vscode-markdown-preview-enhanced/issues/1860

**Environment**
- OS: Mac OS 14.5
- VSCode: 1.107.0
- Markdown Preview Enhanced: 0.8.20

**Screenshots**

![Image](https://github.com/user-attachments/assets/eeacee39-5d51-45c5-a65d-e6dd7e0026ad)
