Refactor: 중복된 navigateToHome 로직 추출

- navigateToHomeAndClearStack 메소드를 사용하도록 수정
- 이동 시 모든 백스택을 제거하도록 설정

Author: wjdrjs00

app/src/main/java/com/threegap/bitnagil/MainNavHost.kt

@@ -38,13 +38,7 @@ fun MainNavHost(
                         popUpTo<Route.Splash> { inclusive = true }
                     }
                 },
-                navigateToHome = {
-                    navigator.navController.navigate(Route.Home) {
-                        popUpTo(navigator.navController.graph.startDestinationId) {
-                            inclusive = true
-                        }
-                    }
-                },
+                navigateToHome = navigator::navigateToHomeAndClearStack,
             )
         }
 
@@ -56,13 +50,7 @@ fun MainNavHost(
 
         composable<Route.Login> {
             LoginScreenContainer(
-                navigateToHome = {
-                    navigator.navController.navigate(Route.Home) {
-                        popUpTo(navigator.navController.graph.startDestinationId) {
-                            inclusive = true
-                        }
-                    }
-                },
+                navigateToHome = navigator::navigateToHomeAndClearStack,
                 navigateToTermsAgreement = { navigator.navController.navigate(Route.TermsAgreement) },
             )
         }
@@ -192,13 +180,7 @@ fun MainNavHost(
 
             OnBoardingScreenContainer(
                 onBoardingViewModel = viewModel,
-                navigateToHome = {
-                    navigator.navController.navigate(Route.Home) {
-                        popUpTo(navigator.navController.graph.startDestinationId) {
-                            inclusive = true
-                        }
-                    }
-                },
+                navigateToHome = navigator::navigateToHomeAndClearStack,
                 navigateToBack = {
                     if (navigator.navController.previousBackStackEntry != null) {
                         navigator.navController.popBackStack()

app/src/main/java/com/threegap/bitnagil/MainNavigator.kt

@@ -9,6 +9,13 @@ class MainNavigator(
     val navController: NavHostController,
 ) {
     val startDestination = Route.Splash
+
+    internal fun navigateToHomeAndClearStack() =
+        navController.navigate(Route.Home) {
+            popUpTo(0) {
+                inclusive = true
+            }
+        }
 }
 
 @Composable