Fix exception type

Co-authored-by: Bartłomiej Dach <dach.bartlomiej@gmail.com>

osu.Game.Rulesets.Osu/Edit/OsuHitObjectComposer.cs

@@ -148,7 +148,7 @@ private void updatePositionSnapGrid(ValueChangedEvent<PositionSnapGridType> obj)
                     break;
 
                 default:
-                    throw new NotImplementedException($"{OsuGridToolboxGroup.GridType} has an incorrect value.");
+                    throw new ArgumentOutOfRangeException(nameof(OsuGridToolboxGroup.GridType), OsuGridToolboxGroup.GridType, "Unsupported grid type.");
             }
 
             // Bind the start position to the toolbox sliders.