Vn-acuvity-poc: Unable to parse elements of Shadow DOM

[tanishq-acu]

It appears that playwright's page.content() function does not successfully get elements that might be within a shadow root.

This means that websites like https://www.bing.com/chat are not able to be successfully tested by the agent, as it cannot get HTML selectors for the input fields of the site.

This is observed in microsoft/playwright#30816.

Therefore, it would be better to write a JS function to be evaluated by Playwright to get the full HTML contents of the page instead.