Feature/english (#381)

* perf[navbar]: set langSelect to component && refine errorLog component

* feat[login]:add 18n to login form

* fix[pagination]: fixed when selected page-sizes

* perf[i18n]:dashboard document svg permission

* perf[charts]: perf effect

* perf[i18n]:excel && zip

* perf[i18n]: table && errorLog && theme

* perf[i18n]: components

* perf[i18n]: direct use $t

* perf[i18n]: complex-table

* update README.md

* update README.md 📘

* perf[i18n]: refine code comments

src/views/components-demo/dndList.vue

@@ -4,7 +4,7 @@
       <a href="https://github.com/SortableJS/Vue.Draggable" target="_blank">Vue.Draggable</a>
     </code>
     <div class="editor-container">
-      <dnd-list :list1="list1" :list2="list2" list1Title="头条列表" list2Title="文章池"></dnd-list>
+      <dnd-list :list1="list1" :list2="list2" list1Title="List" list2Title="Article pool"></dnd-list>
     </div>
   </div>
 </template>