message: Inline and remove LIST_ITEM_HEIGHT
diff: @@ -15,8 +15,6 @@ using namespace NAS2D;
  namespace {
  - constexpr int LIST_ITEM_HEIGHT = 30;
  -
  const Font* MAIN_FONT = nullptr;
  const Font* MAIN_FONT_BOLD = nullptr;
  }
  @@ -24,7 +22,7 @@ namespace {
  ProductListBox::ProductListBox()
  {
  - item_height(LIST_ITEM_HEIGHT);
  + item_height(30);
  MAIN_FONT = &fontCache.load(constants::FONT_PRIMARY, 12);
  MAIN_FONT_BOLD = &fontCache.load(constants::FONT_PRIMARY_BOLD, 12);
  }
  