refactor: removed noise from class names

Shared/Behaviours/ScoreWall.cs

@@ -0,0 +1,19 @@
+using System;
+
+using Syntriax.Engine.Core;
+using Syntriax.Engine.Physics2D;
+
+namespace Pong.Behaviours;
+
+public class ScoreWall(Action OnCollision) : Behaviour2D, IFirstFrameUpdate
+{
+    private Action OnCollision { get; } = OnCollision;
+
+    public void FirstActiveFrame()
+    {
+        if (!BehaviourController.TryGetBehaviour(out ICollider2D? collider2D))
+            return;
+
+        collider2D.OnCollisionDetected.AddListener((_, _1) => OnCollision?.Invoke());
+    }
+}