fix: Add baseElement to render return type (#151)

* fix: Add baseElement to render return type

* Set HTMLElement type to container and baseElement

Author: gnapse

typings/index.d.ts

@@ -5,7 +5,8 @@ export * from 'dom-testing-library'
 type GetsAndQueries = ReturnType<typeof getQueriesForElement>
 
 export interface RenderResult extends GetsAndQueries {
-  container: HTMLDivElement
+  container: HTMLElement
+  baseElement: HTMLElement
   debug: (baseElement?: HTMLElement) => void
   rerender: (ui: React.ReactElement<any>) => void
   unmount: () => boolean