Add UI tests with Playwright

- Implement Playwright as a dev dependency
- Add tests to validation options:
	- deselectAfterAction
	- contextMenu
		- enabled
		- isMulti
		- headerRenderer
		- showStaticOptions
	- buttonList
		- enabled
		- iconOnly
	- options
		- multi
		- title
		- multiTitle
		- isDisabled
		- isDisabledStrictMode
		- isHidden
- Add to CI/CD to gate PRs
