add:vue-i18n,admin add file size

fcb-fronted/src/locals/i18n.ts

@@ -0,0 +1,17 @@
+import { createI18n } from 'vue-i18n' //引入vue-i18n组件
+import messages from './index'
+const language = (
+  navigator.language  || 'zh'
+).toLowerCase();
+
+const lang = localStorage.getItem('language') || language
+
+const i18n = createI18n({
+  silentTranslationWarn: true,
+  globalInjection: true,
+  legacy: false,
+  locale: lang,
+  messages,
+});
+
+export default i18n