style: apply dart format across project

lib/screens/main_screen.dart

@@ -33,7 +33,7 @@ class _MainScreenState extends State<MainScreen>
   late AnimationController _waveController;
   late ScrollController _scrollController;
   late FloatingNavBarScrollController _navBarScrollController;
-  
+
   // 화면 목록
   late final List<Widget> _screens;
 
@@ -63,7 +63,7 @@ class _MainScreenState extends State<MainScreen>
     );
 
     _scrollController = ScrollController();
-    
+
     _navBarScrollController = FloatingNavBarScrollController(
       scrollController: _scrollController,
       onHide: () {},
@@ -157,7 +157,7 @@ class _MainScreenState extends State<MainScreen>
       AppRoutes.addSubscription,
     ).then((result) {
       _resetAnimations();
-      
+
       // 구독이 성공적으로 추가된 경우
       if (result == true) {
         // 상단에 스낵바 표시
@@ -203,18 +203,18 @@ class _MainScreenState extends State<MainScreen>
 
   void _handleNavigation(int index, BuildContext context) {
     final navigationProvider = context.read<NavigationProvider>();
-    
+
     // 이미 같은 인덱스면 무시
     if (navigationProvider.currentIndex == index) {
       return;
     }
-    
+
     // 추가 버튼은 별도 처리
     if (index == 2) {
       _navigateToAddSubscription(context);
       return;
     }
-    
+
     // 인덱스 업데이트
     navigationProvider.updateCurrentIndex(index);
   }
@@ -222,7 +222,7 @@ class _MainScreenState extends State<MainScreen>
   @override
   Widget build(BuildContext context) {
     final navigationProvider = context.watch<NavigationProvider>();
-    
+
     // 메인 그라데이션 사용
     List<Color> backgroundGradient = AppColors.mainGradient;
 
@@ -235,8 +235,12 @@ class _MainScreenState extends State<MainScreen>
     return GlassmorphicScaffold(
       body: IndexedStack(
         index: PlatformHelper.isIOS
-          ? (currentIndex == 3 ? 3 : currentIndex) // iOS: 설정화면은 인덱스 3
-          : (currentIndex == 3 ? 3 : currentIndex == 4 ? 4 : currentIndex), // Android: 기존 로직
+            ? (currentIndex == 3 ? 3 : currentIndex) // iOS: 설정화면은 인덱스 3
+            : (currentIndex == 3
+                ? 3
+                : currentIndex == 4
+                    ? 4
+                    : currentIndex), // Android: 기존 로직
         children: _screens,
       ),
       backgroundGradient: backgroundGradient,
@@ -249,4 +253,4 @@ class _MainScreenState extends State<MainScreen>
       enableWaveAnimation: false,
     );
   }
-}
+}