fix nav bar transparency

app/src/main/kotlin/com/meloda/app/fast/presentation/MainActivity.kt

@@ -5,10 +5,12 @@ import android.app.NotificationChannel
 import android.app.NotificationManager
 import android.content.Context
 import android.content.Intent
+import android.content.res.Configuration
 import android.net.Uri
 import android.os.Build
 import android.os.Bundle
 import android.provider.Settings
+import androidx.activity.SystemBarStyle
 import androidx.activity.compose.setContent
 import androidx.activity.enableEdgeToEdge
 import androidx.appcompat.app.AppCompatActivity
@@ -19,6 +21,8 @@ import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.derivedStateOf
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.remember
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.toArgb
 import androidx.compose.ui.platform.LocalContext
 import androidx.core.content.ContextCompat
 import androidx.core.os.LocaleListCompat
@@ -50,7 +54,17 @@ class MainActivity : AppCompatActivity() {
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
-        enableEdgeToEdge()
+
+        val currentNightMode = resources.configuration.uiMode and Configuration.UI_MODE_NIGHT_MASK
+        val systemBarStyle = when (currentNightMode) {
+            Configuration.UI_MODE_NIGHT_NO -> SystemBarStyle.light(Color.Transparent.toArgb(), Color.Transparent.toArgb())
+            Configuration.UI_MODE_NIGHT_YES -> SystemBarStyle.dark(Color.Transparent.toArgb())
+            else -> error("Illegal State, current mode is $currentNightMode")
+        }
+        enableEdgeToEdge(
+            statusBarStyle = systemBarStyle,
+            navigationBarStyle = systemBarStyle,
+        )
 
         createNotificationChannels()