message: Mark read-only uses of auto& with const
diff: @@ -234,7 +234,7 @@ void IconGrid::itemAvailable(const std::string& item, bool isItemAvailable)
  bool IconGrid::itemAvailable(const std::string& item)
  {
  const auto lowerCaseTarget = toLowercase(item);
  - for (auto& iconItem : mIconItemList)
  + for (const auto& iconItem : mIconItemList)
  {
  if (toLowercase(iconItem.name) == lowerCaseTarget)
  {
  @@ -273,7 +273,7 @@ void IconGrid::removeItem(const std::string& item)
  bool IconGrid::itemExists(const std::string& item)
  {
  const auto lowerCaseTarget = toLowercase(item);
  - for (auto& iconItem : mIconItemList)
  + for (const auto& iconItem : mIconItemList)
  {
  if (toLowercase(iconItem.name) == lowerCaseTarget)
  {
  