[deprecated] context.root.*

![image](https://user-images.githubusercontent.com/14896521/117665156-d6b5f780-b1a2-11eb-9f52-a814df6ccd7e.png)

`context.root` was deprecated, [getCurrentInstance](https://v3.vuejs.org/api/composition-api.html#getcurrentinstance) or [router composable](https://next.router.vuejs.org/guide/advanced/composition-api.html#accessing-the-router-and-current-route-inside-setup) should be used instead.