show dynamic path

app/src/main/java/sh/sar/isodroid/ui/screens/SetupWizardScreen.kt

@@ -8,6 +8,7 @@ package sh.sar.isodroid.ui.screens
 import android.Manifest
 import android.content.pm.PackageManager
 import android.os.Build
+import android.os.Environment
 import androidx.core.content.ContextCompat
 import androidx.activity.compose.rememberLauncherForActivityResult
 import androidx.activity.result.contract.ActivityResultContracts
@@ -332,7 +333,7 @@ private fun CompleteStep(
     Spacer(modifier = Modifier.height(8.dp))
 
     Text(
-        text = "Default directory: /sdcard/isodroid/",
+        text = "Default directory: ${Environment.getExternalStorageDirectory().absolutePath}/isodroid/",
         style = MaterialTheme.typography.bodySmall,
         textAlign = TextAlign.Center,
         color = MaterialTheme.colorScheme.onSurfaceVariant.copy(alpha = 0.7f)