Fix Little Memory Leak Risk

Core/RenderManager.cs

@@ -624,6 +624,22 @@ namespace ADOFAIRenderer.Core
             GCS.customLevelPaths = null;
             GCS.customLevelId = null;
             
+            lock (ImageQueue)
+            {
+                foreach (var kvp in ImageQueue.Values)
+                {
+                    if (kvp.ManagedBuffer != null && kvp.ManagedBuffer.Length > 0)
+                    {
+                        ArrayPool<byte>.Shared.Return(kvp.ManagedBuffer);
+                    }
+                    if (kvp.ReadbackState != null)
+                    {
+                        _frameReader?.RecycleState(kvp.ReadbackState);
+                    }
+                }
+                ImageQueue.Clear();
+            }
+
             _frameReader?.Dispose();
             ADOBase.loader.LoadSceneWithTransition(WipeDirection.StartsFromRight, "scnEditor");
         }