remove chunk size - it's always 10% of wave size

Assets/_Project/Scripts/Gameplay/WaveManager.cs

@@ -336,7 +336,7 @@ namespace TD.Gameplay
                 {
                     if (entry.EnemyType == null || entry.Count <= 0) continue;
 
-                    int chunkSize = Mathf.Max(1, entry.ChunkSize);
+                    int chunkSize = Mathf.Max(1, Mathf.RoundToInt(entry.Count * 0.1f));
                     for (int i = 0; i < entry.Count; i += chunkSize)
                     {
                         int burst = Mathf.Min(chunkSize, entry.Count - i);