FR: add a short cut for Switch the folding panel

<img width="384" height="154" alt="Image" src="https://github.com/user-attachments/assets/e7d2e630-a280-45d1-9b4b-07029cf8f780" />

this is useful ， 



and recommand ctrl+j like  vscode 

<img width="930" height="148" alt="Image" src="https://github.com/user-attachments/assets/3b29983c-f4ae-4228-b6ec-63acc9e328d3" />