Last life cycle refactor updates + add comprehensive documentation (#57)

Co-authored-by: Michal Pikulski <michal.a.pikulski@gmail.com>
Reviewed-on: #57

Assets/Scripts/Cinematics/SkipCinematic.cs

@@ -15,8 +15,6 @@ namespace Cinematics
         private float _holdStartTime;
         private bool _isHolding;
         private bool _skipPerformed;
-    
-        public override int ManagedAwakePriority => 180; // Cinematic UI
         
         internal override void OnManagedStart()
         {
@@ -32,10 +30,8 @@ namespace Cinematics
             Logging.Debug("[SkipCinematic] Initialized");
         }
         
-        protected override void OnDestroy()
+        internal override void OnManagedDestroy()
         {
-            base.OnDestroy();
-            
             // Clean up subscriptions
             UnsubscribeFromCinematicsEvents();
         }