Throw exeecption on Scene Service void Deactivate<T> if delegate wasn't found on a cene

[stan-osipov]

 if (AdditiveScenesLoader.TryGetLoadedScene(sceneName, out var scene))
            {
                var sceneManager = FindMonoTypeOnSceneRoot<T>(scene);
                var sceneDelegate = FindMonoTypeOnSceneRoot<ISceneDelegate>(scene);
                sceneDelegate?.DeactivateScene(() =>
                {
                    onComplete?.Invoke(sceneManager);
                });
            }
            else
            {
               throw new InvalidOperationException($"{nameof(SceneLoadService)} can not deactivate {sceneName} scene, because it wasn't loaded. ");
            }