feat: 알림 재예약 개선과 패키지 업그레이드

lib/widgets/animated_wave_background.dart

@@ -10,10 +10,10 @@ class AnimatedWaveBackground extends StatelessWidget {
   final AnimationController pulseController;
 
   const AnimatedWaveBackground({
-    Key? key,
+    super.key,
     required this.controller,
     required this.pulseController,
-  }) : super(key: key);
+  });
 
   @override
   Widget build(BuildContext context) {