[BOOK-355] fix: Android 13 미만에서 시스템 알림 비활성화 시 동기화 안되는 문제 수정

Author: seoyoon513

feature/settings/src/main/kotlin/com/ninecraft/booket/feature/settings/notification/NotificationUi.kt

@@ -2,7 +2,6 @@ package com.ninecraft.booket.feature.settings.notification
 
 import android.content.Context
 import android.content.Intent
-import android.content.pm.PackageManager
 import android.os.Build
 import android.provider.Settings
 import androidx.activity.compose.rememberLauncherForActivityResult
@@ -29,7 +28,7 @@ import androidx.compose.ui.graphics.vector.ImageVector
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.res.vectorResource
-import androidx.core.content.ContextCompat
+import androidx.core.app.NotificationManagerCompat
 import androidx.lifecycle.Lifecycle
 import androidx.lifecycle.LifecycleEventObserver
 import androidx.lifecycle.compose.LocalLifecycleOwner
@@ -62,9 +61,7 @@ internal fun NotificationUi(
         // 포그라운드 복귀 시 OS 권한 동기화
         val observer = LifecycleEventObserver { _, event ->
             if (event == Lifecycle.Event.ON_RESUME) {
-                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
-                    value = checkNotificationPermission(context)
-                }
+                value = checkNotificationPermission(context)
             }
         }
         lifecycleOwner.lifecycle.addObserver(observer)
@@ -164,11 +161,8 @@ internal fun NotificationGuideItem(
 }
 
 private fun checkNotificationPermission(context: Context): Boolean {
-    return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
-        ContextCompat.checkSelfPermission(context, android.Manifest.permission.POST_NOTIFICATIONS) == PackageManager.PERMISSION_GRANTED
-    } else {
-        true
-    }
+    val notificationManager = NotificationManagerCompat.from(context)
+    return notificationManager.areNotificationsEnabled()
 }
 
 @RequiresApi(Build.VERSION_CODES.TIRAMISU)