test: fix playground

Author: fi3ework

playground/config-default/src/main.ts

@@ -1,8 +1,7 @@
 import { text } from './text'
 
-const hello = 'Hello'
+var hello = 'Hello'
 
-// eslint-disable-next-line @typescript-eslint/no-non-null-assertion
 const rootDom = document.querySelector('#root')! as HTMLElement
 rootDom.innerHTML = hello + text