fix: Loading初始语言en_US

public/loading.js

@@ -155,7 +155,7 @@
       }
     </style>`;
 
-    const lang = localStorage.getItem('cache:local:i18n');
+    const lang = localStorage.getItem('cache:local:i18n') || 'en_US';
     // 根据浏览器选择语言
     // if (!lang) {
     //   let preferredLanguage = navigator.language;