Migrate Frame APIs to async

[inancgumus]

Tasks

Beta Give feedback

1. Async Frame #1367
   async mapping refactor stability +4
   
2. Improve GetAttribute null attribute detection #1370
   enhancement playwright +2
   
3. Improve TextContent null element detection #1371
   enhancement playwright +2
   
4. Update methods on Frame type to return Promises k6-DefinitelyTyped#47
   browser +1
   
5. Browser/async frame k6-docs#1627
   Area: browser +1
   
6. Create documentation for the Frame class #763
   documentation good first issue hacktoberfest +3
   
7. Release Notes:

---

What

Migrate the following APIs according to the How section in #428:

Class	Method	Current k6 Return	PW return
Frame	$	ElementHandle|null	Promise<ElementHandle<SVGElement|HTMLElement>|null>
Frame	$$	ElementHandle[]	Promise<ElementHandle<SVGElement|HTMLElement>[]>
Frame	check	void	Promise
Frame	content	string	Promise
Frame	dblclick	void	Promise
Frame	dispatchEvent	void	Promise
Frame	evaluate<R, Arg>	R	Promise
Frame	evaluateHandle<R, Arg>	JSHandle	Promise<SmartHandle>
Frame	fill	void	Promise
Frame	focus	void	Promise
Frame	frameElement	ElementHandle	Promise
Frame	getAttribute	string	Promise<null|string>
Frame	hover	void	Promise
Frame	innerHTML	string	Promise
Frame	innerText	string	Promise
Frame	inputValue	string	Promise
Frame	isChecked	boolean	Promise
Frame	isDisabled	boolean	Promise
Frame	isEditable	boolean	Promise
Frame	isEnabled	boolean	Promise
Frame	isHidden	boolean	Promise
Frame	isVisible	boolean	Promise
Frame	press	void	Promise
Frame	selectOption	string[]	Promise<Array>
Frame	setContent	void	Promise
Frame	setInputFiles	void	Promise
Frame	tap	void	Promise
Frame	textContent	string	Promise<null|string>
Frame	title	string	Promise
Frame	type	void	Promise
Frame	uncheck	void	Promise
Frame	waitForLoadState	void	Promise
Frame	waitForSelector	ElementHandle	Promise<null|ElementHandle<SVGElement|HTMLElement>>
Frame	waitForTimeout	void	Promise

For details on the Why and How, check the overarching issue in #428.