refactor: let loadingscreen init itself OnEnable

Assets/Raindrop/Bootstrap/UIBootstrapper.cs

@@ -60,7 +60,6 @@ namespace Raindrop.Bootstrap
 
             if (references.ll == null)
                 Debug.LogError("loadingscreen not present");
-            references.ll.Init();
 
             _uisrv = new UIService(
                 instance,

Assets/Raindrop/UI/LoadingScreen/LoadingView.cs

@@ -20,7 +20,7 @@ namespace Raindrop.UI.LoadingScreen
         [SerializeField] public float delayBeforeFade = 2;
 
         
-        public void Init()
+        public void OnEnable()
         {
             loginMsg = new ReactiveProperty<string>(""); //"" is a magic value that is required to prevent showing the modal immediately on load.
             loginMsg.AsObservable().Subscribe(