fix(localization): update language labels to use English and native scripts for consistency

locales/zh-CN.json

@@ -64,15 +64,15 @@
             "current": "语言",
             "select": "选择语言",
             "select_help": "选择您偏好的界面语言",
-            "english": "英语",
+            "english": "English",
             "chinese_simplified": "中文（简体）",
             "chinese_traditional": "中文（繁体）",
-            "russian": "俄语",
-            "german": "德语",
-            "japanese": "日语",
-            "korean": "韩语",
-            "french": "法语",
-            "spanish": "西班牙语"
+            "russian": "Русский",
+            "german": "Deutsch",
+            "japanese": "日本語",
+            "korean": "한국어",
+            "french": "Français",
+            "spanish": "Español"
         }
     },
     "header": {