[Experimental] Screenshot-based browsing

[ryanhoangt]

End-user friendly description of the problem this fixes or functionality that this introduces

• [ ] Include this change in the Release Notes. If checked, you must provide an end-user friendly description for your change below

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Give a summary of what the PR does, explaining any non-trivial design decisions

This PR is to:

• Add a screen-shot based browsing mechanism based on Anthropic's computer use feature.

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Link of any specific issues this addresses

Fix https://github.com/All-Hands-AI/OpenHands/issues/4570