Slight folder performance tweak

src/Artemis.Core/Models/Profile/Folder.cs

@@ -78,10 +78,7 @@ namespace Artemis.Core.Models.Profile
 
         public override void Render(double deltaTime, SKCanvas canvas, SKImageInfo canvasInfo)
         {
-            if (!Enabled)
-                return;
-
-            if (Path == null)
+            if (!Enabled || Path == null || !Children.Any(c => c.Enabled))
                 return;
             
             if (_folderBitmap == null)