更新睡眠报告

lib/language/AppLanguage.dart

@@ -98,4 +98,8 @@ class AppLanguage extends Translations {
     final parts = _currentLanguageCode.split('-');
     return Locale(parts[0], parts.length > 1 ? parts[1] : null);
   }
+
+  bool isChinese() {
+    return _currentLanguageCode == "zh_CN";
+  }
 }