refactor!: Identifiable interface extracted from IEntity

Engine.Core/Abstract/IEntity.cs

@@ -3,18 +3,4 @@ namespace Engine.Core;
 /// <summary>
 /// Represents a basic entity in the engine.
 /// </summary>
-public interface IEntity : IInitializable, IHasStateEnable
-{
-    /// <summary>
-    /// Event triggered when the <see cref="Id"/> of the <see cref="IEntity"/> changes.
-    /// The string action parameter is the previous <see cref="Id"/> of the <see cref="IEntity"/>. 
-    /// </summary>
-    Event<IEntity, IdChangedArguments> OnIdChanged { get; }
-
-    /// <summary>
-    /// The ID of the <see cref="IEntity"/>.
-    /// </summary>
-    string Id { get; set; }
-
-    readonly record struct IdChangedArguments(string PreviousId);
-}
+public interface IEntity : IInitializable, IIdentifiable, IHasStateEnable;