[U] Change language to english

src/main.ts

@@ -1,7 +1,10 @@
 import Vue from 'vue';
+import ElementUI from 'element-ui';
+
 import App from './components/app/app.vue';
 
 Vue.config.productionTip = false;
+Vue.use(ElementUI, {locale: 'en-us'});
 
 new Vue({
   render: (h) => h(App),