Modify code organization

cmdb-ui/src/components/PageLoading/index.jsx

@@ -0,0 +1,10 @@
+import { Spin } from 'ant-design-vue'
+
+export default {
+  name: 'PageLoading',
+  render () {
+    return (<div style={{ paddingTop: 100, textAlign: 'center' }}>
+      <Spin size="large" />
+    </div>)
+  }
+}