feat(app): デバッグ機能へのアクセスアイコン表示をデバッグ実行時のみに制限

apps/app/lib/ui/home_page.dart

@@ -1,5 +1,6 @@
 import 'package:cores_designsystem/theme_extensions.dart';
 import 'package:features_github_repository/ui.dart';
+import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_app/gen/l10n/l10n.dart';
 import 'package:flutter_app/ui/provider/navigator_provider.dart';
@@ -23,12 +24,13 @@ class HomePage extends ConsumerWidget {
       appBar: AppBar(
         title: Text(l.appBar),
         actions: [
-          IconButton(
-            onPressed: () => navigator.goDebugPage(context),
-            icon: const Icon(
-              Icons.construction,
+          if (kDebugMode)
+            IconButton(
+              onPressed: () => navigator.goDebugPage(context),
+              icon: const Icon(
+                Icons.construction,
+              ),
             ),
-          ),
           IconButton(
             onPressed: () => navigator.goWebPage(context),
             icon: const Icon(