Add a "Collapse" in the "folder name" right-click menu

### Description

This function would collapse recursively the tree structure under the selected folder. It would be implemented in the "Projects" and "Files" window views.

### Use case/motivation

The issue today is that the only function available is "Collapse All".

Sometimes I need to collapse recursively specific folders but not the parts I am currently working on.

### Related issues

_No response_

### Are you willing to submit a pull request?

No

### Code of Conduct

Yes