update docs

Signed-off-by: NHelloCrease <lian15@huawei.com>

zh-cn/application-dev/website.md

@@ -948,7 +948,6 @@
       - [@ohos.web.webview (Webview)](reference/apis/js-apis-webview.md)
       - [console (控制台)](reference/apis/js-apis-logs.md)
       - [Timer (定时器)](reference/apis/js-apis-timer.md)
-      - [@system.app (应用上下文)](reference/apis/js-apis-system-app.md)
       - application
         - [AccessibilityExtensionContext (辅助功能扩展上下文)](reference/apis/js-apis-inner-application-accessibilityExtensionContext.md)
     - 设备管理
@@ -1038,6 +1037,7 @@
       - [@ohos.systemParameter (系统属性)](reference/apis/js-apis-system-parameter.md)
       - [@ohos.systemTime (系统时间、时区)](reference/apis/js-apis-system-time.md)
       - [@ohos.usb (USB管理)](reference/apis/js-apis-usb-deprecated.md)
+      - [@system.app (应用上下文)](reference/apis/js-apis-system-app.md)
       - [@system.battery (电量信息)](reference/apis/js-apis-system-battery.md)
       - [@system.bluetooth (蓝牙)](reference/apis/js-apis-system-bluetooth.md)
       - [@system.brightness (屏幕亮度)](reference/apis/js-apis-system-brightness.md)