fix: prepare document in setup (#753)

src/setup.ts

@@ -1,5 +1,6 @@
 import {clear} from './clear'
 import {click, clickOptions, dblClick} from './click'
+import {prepareDocument} from './document'
 import {hover, unhover} from './hover'
 import {createKeyboardState, keyboard, keyboardOptions} from './keyboard'
 import type {keyboardState} from './keyboard/types'
@@ -59,7 +60,7 @@ interface SetupOptions
  * All APIs returned by this function share an input device state and a default configuration.
  */
 export function setup(options: SetupOptions = {}) {
-  // TODO: prepare our document state workarounds
+  prepareDocument(options.document ?? document)
 
   return _setup(options, {
     keyboardState: createKeyboardState(),