Refactor screens to MVC architecture with modular widgets

- Extract business logic from screens into dedicated controllers
- Split large screen files into smaller, reusable widget components
- Add controllers for AddSubscriptionScreen and DetailScreen
- Create modular widgets for subscription and detail features
- Improve code organization and maintainability
- Remove duplicated code and improve reusability

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

lib/widgets/glassmorphism_card.dart

@@ -126,7 +126,6 @@ class _AnimatedGlassmorphismCardState extends State<AnimatedGlassmorphismCard>
   late AnimationController _controller;
   late Animation<double> _scaleAnimation;
   late Animation<double> _blurAnimation;
-  bool _isPressed = false;
 
   @override
   void initState() {
@@ -160,23 +159,14 @@ class _AnimatedGlassmorphismCardState extends State<AnimatedGlassmorphismCard>
   }
 
   void _handleTapDown(TapDownDetails details) {
-    setState(() {
-      _isPressed = true;
-    });
     _controller.forward();
   }
 
   void _handleTapUp(TapUpDetails details) {
-    setState(() {
-      _isPressed = false;
-    });
     _controller.reverse();
   }
 
   void _handleTapCancel() {
-    setState(() {
-      _isPressed = false;
-    });
     _controller.reverse();
   }