updateShouldNotify method
notify child widgets if a setting changes on the overall wrapper
Implementation
@override
bool updateShouldNotify(CardSettings old) {
if (labelAlign != old.labelAlign) return true;
if (labelWidth != old.labelWidth) return true;
if (labelPadding != old.labelPadding) return true;
if (labelSuffix != old.labelSuffix) return true;
if (contentAlign != old.contentAlign) return true;
return false;
}