message: Use convenience `Rectangle::to` conversion in RadioButton
diff: @@ -94,11 +94,7 @@ void RadioButton::onMouseDown(EventHandler::MouseButton button, int x, int y)
  {
  if (!enabled() || !visible() || !hasFocus()) { return; }
  - if (button == EventHandler::MouseButton::BUTTON_LEFT && isPointInRect(x, y,
  - static_cast<int>(rect().x()),
  - static_cast<int>(rect().y()),
  - static_cast<int>(rect().width()),
  - static_cast<int>(rect().height())))
  + if (button == EventHandler::MouseButton::BUTTON_LEFT && mRect.to<int>().contains(Point{x, y}))
  {
  click();
  mCallback();
  