Fix Add Inventory Item Issues

- Added heading "Add Inventory Item" to submenu for clearer user guidance.
- Updated option text from "Add Quantity" to "Restock Item".
- Ensured console clearing (util::clear) before add item and restock operations.
- Reformatted prompts with consistent spacing and line breaks (e.g., "Enter Item Details", "Select Item to Restock").
- Added default case handling in AdminMenu for invalid choices.
- Enhanced MenuHelper output:
  - Extra line breaks for readability.
  - Improved error messages ("Invalid index selected", "No active items available").
  - Clearer success message when updating stock with new quantity.

Fixes #1740

Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/AdminMenu.cpp

@@ -218,13 +218,15 @@ void AdminMenu::addInventoryItem()
 	int choice, quantity;
 	double price;
 	std::string partName;
-	std::cout << "1. Add new item \n2. Add Quantity\nEnter your choice : ";
+	std::cout << "Add Inventory Item\n";
+	std::cout << "1. Add new item \n2. Restock Item\n\nEnter your choice : ";
 	util::read(choice);
 	switch (choice)
 	{
-	case 1: 
+	case 1:
 	{
-		std::cout << "--------Enter Item Details----------\n";
+		util::clear();
+		std::cout << "Enter Item Details\n";
 		std::cout << "Part Name : ";
 		util::read(partName);
 		std::cout << "Quantity : ";
@@ -232,15 +234,21 @@ void AdminMenu::addInventoryItem()
 		std::cout << "Price : ";
 		util::read(price);
 		m_controller.addInventoryItem(partName, quantity, price);
-		std::cout << "New Item " << partName << " added to the Inventory.\n";
+		std::cout << "\nNew Item " << partName << " added to the Inventory.\n\n";
 		break;
 	}
 	case 2:
 	{
+		util::clear();
+		std::cout << "Select Item to Restock\n";
 		auto inventoryItems = m_controller.getInventoryItems();
 		addQuantityToItem(inventoryItems, m_controller);
 		break;
 	}
+	default:
+	{
+		std::cout << "\nEnter a valid choice.\n\n";
+	}
 	}
 	util::pressEnter();
 }

Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/MenuHelper.h

@@ -908,6 +908,7 @@ inline void displayInventoryWithItems(util::Map<std::string, const InventoryItem
                 << std::endl;
         }
     }
+    std::cout << std::endl;
 }
 
 /*
@@ -927,7 +928,7 @@ inline void addQuantityToItem(util::Map<std::string, const InventoryItem*>& inve
     int activeSize = activeItems.getSize();
     if (activeSize == 0)
     {
-        std::cout << "No active items available in Inventory" << std::endl;
+        std::cout << "\nNo active items available in Inventory" << std::endl << std::endl;
         return;
     }
     displayInventoryWithItems(activeItems);
@@ -935,7 +936,7 @@ inline void addQuantityToItem(util::Map<std::string, const InventoryItem*>& inve
     util::read(itemIndex);
     if (itemIndex < 1 || itemIndex > activeSize)
     {
-        std::cout << "Invalid index selected." << std::endl;
+        std::cout << "\nInvalid index selected." << std::endl << std::endl;
         return;
     }
     std::cout << "Enter quantity to add: ";
@@ -950,13 +951,14 @@ inline void addQuantityToItem(util::Map<std::string, const InventoryItem*>& inve
     {
         std::string selectedItemId = selectedItem->getId();
         m_controller.addInventoryItemStock(selectedItemId, quantity);
-        std::cout << "Updated " << selectedItem->getPartName()
+        std::cout << "\nUpdated " << selectedItem->getPartName()
             << " stock. New quantity: " << selectedItem->getQuantity()
+            << std::endl
             << std::endl;
     }
     else
     {
-        std::cout << "Error: Selected item could not be found." << std::endl;
+        std::cout << "\nError: Selected item could not be found." << std::endl << std::endl;
     }
 }