feat: add new theme air (#1167)

* chore: add theme air with new-api main branch v0.2.0.3-alpha.1(first step)

* feat: 完成渠道界面

* chore: 优化渠道界面样式问题

* feat: 完成兑换码界面

* feat: 完成充值（钱包）界面

* chore: 初代air主题将使用default主题的运营设置界面、系统设置界面、其他设置界面

* feat: 完成日志界面

* feat: 完成用户管理界面

* feat: 完成个人设置界面

* feat: 完成令牌界面

* chore: 优化令牌界面逻辑

* feat: 修改版权信息

* chore: make necessary changes

---------

Co-authored-by: Calon <1808837298@qq.com>
Co-authored-by: Apple\Apple <zeraturing@foxmail.com>
Co-authored-by: JustSong <songquanpeng@foxmail.com>

web/air/src/components/Loading.js

@@ -0,0 +1,14 @@
+import React from 'react';
+import { Dimmer, Loader, Segment } from 'semantic-ui-react';
+
+const Loading = ({ prompt: name = 'page' }) => {
+  return (
+    <Segment style={{ height: 100 }}>
+      <Dimmer active inverted>
+        <Loader indeterminate>加载{name}中...</Loader>
+      </Dimmer>
+    </Segment>
+  );
+};
+
+export default Loading;