[Feature Request]: Click to directly copy the value of a node widget

### Is there an existing issue for this?

- [x] I have searched the existing issues and checked the recent builds/commits

### What would your feature do ?

Hold down ctrl + right click to quickly get the parameters of the widget at the mouse pointer

### Proposed workflow

Click the widget name with the key combination to copy its name to the clipboard

Click the widget value with the key combination to copy the value to the clipboard, and do not close the selection panel (such as combo type widgets)

Other optimizations:
In the panel of converting widgets to inputs, when the user presses ctrl and clicks, do not close the panel, keep it open, so that it will be more convenient to convert multiple widgets to inputs

### Additional information

_No response_