Fix damagestatevisualizer (#8879)

Content.Client/MobState/DamageStateVisualizerSystem.cs

@@ -31,9 +31,11 @@ public sealed class DamageStateVisualizerSystem : VisualizerSystem<DamageStateVi
         }
 
         // Brain no worky rn so this was just easier.
-        foreach (var layer in sprite.AllLayers)
+        foreach (var key in new []{ DamageStateVisualLayers.Base, DamageStateVisualLayers.BaseUnshaded })
         {
-            sprite.LayerSetVisible(layer, false);
+            if (!sprite.LayerMapTryGet(key, out _)) continue;
+
+            sprite.LayerSetVisible(key, false);
         }
 
         foreach (var (key, state) in layers)