i8n과 광고 수정

lib/screens/app_lock_screen.dart

@@ -1,5 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
+
+import '../l10n/app_localizations.dart';
 import '../providers/app_lock_provider.dart';
 // import '../theme/app_colors.dart';
 
@@ -8,6 +10,7 @@ class AppLockScreen extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
+    final loc = AppLocalizations.of(context);
     return Scaffold(
       body: Center(
         child: Column(
@@ -20,7 +23,7 @@ class AppLockScreen extends StatelessWidget {
             ),
             const SizedBox(height: 24),
             Text(
-              '앱이 잠겨 있습니다',
+              loc.appLocked,
               style: TextStyle(
                 fontSize: 24,
                 fontWeight: FontWeight.bold,
@@ -29,7 +32,7 @@ class AppLockScreen extends StatelessWidget {
             ),
             const SizedBox(height: 16),
             Text(
-              '생체 인증으로 잠금을 해제하세요',
+              loc.appLockDesc,
               style: TextStyle(
                 fontSize: 16,
                 color: Theme.of(context).colorScheme.onSurfaceVariant,
@@ -45,7 +48,7 @@ class AppLockScreen extends StatelessWidget {
                   ScaffoldMessenger.of(context).showSnackBar(
                     SnackBar(
                       content: Text(
-                        '인증에 실패했습니다. 다시 시도해주세요.',
+                        loc.authenticationFailed,
                         style: TextStyle(
                           color: cs.onPrimary,
                         ),
@@ -56,7 +59,7 @@ class AppLockScreen extends StatelessWidget {
                 }
               },
               icon: const Icon(Icons.fingerprint),
-              label: const Text('생체 인증으로 잠금 해제'),
+              label: Text(loc.unlockWithBiometric),
               style: ElevatedButton.styleFrom(
                 padding: const EdgeInsets.symmetric(
                   horizontal: 24,