Save scene on save

- Check if the user wants to save the dirty scene on save

Editor/ScenePartitionSO.cs

@@ -92,7 +92,7 @@ private void LoadScenePartitions(SortedSet<ulong> partitionIds)
 
                 // Add always load ids.
                 SortedSet<ulong> baseIds = GetAlwaysLoadIds();
-                foreach (var id in baseIds)
+                foreach (ulong id in baseIds)
                 {
                     partitionIds.Add(id);
                 }
@@ -139,6 +139,9 @@ public void Save()
         {
             using (new ProfilerUtility.ProfilerScope($"{nameof(Save)}"))
             {
+                // Check if the user wants to save the scene if dirty.
+                if (!EditorSceneManager.SaveCurrentModifiedScenesIfUserWantsTo()) return;
+
                 DeleteLoadedPartitions(); // Delete the loaded partitions from disk so we can write the new ones.
 
                 string pattern = @"&(\d+)";