Store checkbox state `Show visible layers only` in the `Add Layer to Legend` dialog

[MrChebur]

Feature description

In Layout, when you click the Add layer(s) to legend button in the Legend item properties, its boolean parameter Show visible layers only is always reset to its default state False (unchecked).

It would be nice to save the state of this checkbox so you don't have to click it all the time.

Additional context

No response

[bkepl]

I agree. Even better would be to have an option in the general program settings for the default behavior.