fix: NPCs purchase items without capacity check (opentibiabr#2753)

Resolves opentibiabr#2737

src/game/game.cpp

@@ -2362,7 +2362,7 @@ std::tuple<ReturnValue, uint32_t, uint32_t> Game::addItemBatch(const std::shared
 				if (item->getContainer()) {
 					containersCreated++;
 				}
-				totalAdded++;
+				totalAdded += item->getItemCount();
 			}
 
 			ret = returnError;