Complete C# rewrite with working game in Editor (#6)

* Refactor collectable components to C# and update resource scripts for consistency

* Update resource paths and refactor properties for consistency

* Refactor UI components to inherit from Control and update node paths for consistency

* Update node paths and group assignments for consistency across scenes

* Refactor GameManager and PlayerDeathComponent for improved state management and logging; update scene connections for player death handling

* Add PhantomCamera components and UI elements for improved scene management; refactor existing components for better integration

* Refactor skill components and update resource paths for consistency; enhance skill management in scenes

* Add new UID files and update scene configurations for dialogue components; refactor skill management and input handling

* Add next level command and refactor player retrieval in GameManager; update scene files for consistency

* Add skill upgrade system and refactor skill components for enhanced functionality; update resource paths and configurations

* Enhance ChargeProgressBar and Marketplace functionality; add owner exit handling and update skill button states

* Refactor ChargeProgressBar and SkillManager; update skill handling and improve component interactions

* Refactor player and level configurations; streamline FlipPlayerComponent and reposition Spaceship Enter

scripts/components/FlashingComponent.cs

@@ -30,11 +30,10 @@ public partial class FlashingComponent : Node
     public void StartFlashing()
     {
         if (Sprite == null) return;
-
-        _tween?.Kill();
-
+        if (_tween != null && _tween.IsRunning()) return;
+        
         _tween = CreateTween();
-        _tween.SetParallel(true);
+        _tween.SetParallel(false);
 
         var flashes = (int)(FlashDuration / FlashTime);
         for (var i = 0; i < flashes; i++)