support for shadowRoot elements in @wdio/visual-service for tab testing

[pclicious]

ShadowRoot elements are not getting recognized during tab testing
While trying tab testing on my website, which is having many shadow root elements, it was not capturing tabs for elements inside shadowRoot

await expect(await browser.checkTabbablePage(screenshotName, { // ignoreColors: true, })).toEqual(differencesCount);

User should have parameterized option to enable tab testing for shadowRoot elements as well
Referred https://www.npmjs.com/package/tabbable, here we have getShadowRoot option to enable shadowRoot elements, similarly we should have an option in the library to enable tab testing to include shadowRoot elements along with other elements.

[wswebcreation]

Hi @pclicious

Do you also have an example site that I can work with that has shadowroot elements and other elements that are can be tabbed?