Latest Notification Is Determined Using String Comparison

Changes:

- Added #include "StringHelper.h" to MenuHelper.h for utility functions.

- Updated displayNewNotification() to compare notification IDs using util::extractNumber() instead of raw string comparison.

- Ensured numeric ordering of notifications by extracting and comparing integer values from IDs.

- Preserved existing notification selection logic while improving accuracy of ID comparisons.

Fixes #2081

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

@@ -28,6 +28,7 @@ Date: 21-May-2026
 #include "Utility.h"
 #include "Validator.h"
 #include "Vector.h"
+#include "StringHelper.h"
 
 /*
 Function: displayAllServices
@@ -1430,7 +1431,7 @@ inline void displayNewNotification(util::Vector<const Notification*> notificatio
 		}
 		else
 		{
-			if (notification->getId() < notifications[index]->getId())
+            if (util::extractNumber(notification->getId()) < util::extractNumber(notifications[index]->getId()))
 			{
 				notification = notifications[index];
 			}