Allows to mark the section as disabled even when the control itself is not, e.g. when you have a RowLayout and don't want to disable the entire row.
This was possible with a checkable section but not the plain label buddy variant.

In the following example I don't want the BusyIndicator disabled but still have the rest of the row (the label *and* its section label) disabled.

Kirigami.FormLayout {
    RowLayout {
        Kirigami.FormData.label: "Foo"
        Kirigami.FormData.enabled: !something.busy

        QQC2.CheckBox {
            text: "Enabled"
            enabled: !something.busy
        }
        
        QQC2.BusyIndicator {
            running: something.busy
            visible: running
        }
    }
}