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当权限子菜单无权限或不存在子菜单时不展示父菜单

* Translated the md files of Login component and the validation messages.

* Rename index.md to index.en-US.md

* Restored the Chinese version and renamed it

* Updated according to review

* Fixed all the typos

* fix Authorized Promise render

* fix style Authorized blank line

原代码错用 location 变量作为判断，会一直读取 window.location

* temp save

* temp save

* user-center

* features add userinfo page

* Delete unnecessary objects

* Modify the title style

* Meun using antd

* userinfo/base/:page -> userinfo/:page

* itemview -> list

* userinfo add upload

* meun -> menu

* use getRoutes & rename files

* temp save

* temp save

* user-center

* features add userinfo page

* Delete unnecessary objects

* Modify the title style

* Meun using antd

* userinfo/base/:page -> userinfo/:page

* itemview -> list

* userinfo add upload

* meun -> menu

* use getRoutes & rename files

* div to fragment

* Remove extra divs

* fix indent

* translate FooterToolbar

* remove the unnessary demo code

* Slider breakpoint: md => lg

* breadcrumb separator custom

- extract columns
- support multiple sums display

* 修复当Login内不使用Tab无法输入当问题

当Login内不使用Tab时，存在二个问题：
1、item有可能为空
2、输入框无法输入，执行了Login的render方法，但子组件没有执行

* 修复当用tab时子元素被清空当问题

修复当用tab时子元素被清空当问题