update method
Updates a single record in the store
The data is handdled as per the AppStreamElement passed
Implementation
@override
void update({required AppStreamElement<T> element}) {
switch (element.operation) {
case Operation.Add:
case Operation.Update:
_add(element.item);
break;
case Operation.Delete:
_delete(element.item);
break;
default:
break;
}
super.update(element: element);
}