[bug] Screenshot needs to be of the most recently interacted frame

[drfarrell]

Describe the bug

I have two frames on the page, one is dark and the other is light. The dark one I've been working on a lot, and yet when I "add a screenshot" it pulls a screenshot from the other frame.

Ideally this takes a screenshot of the workspace that I am working most recently in otherwise it doesn't make sense for the AI.

[Raj-G07]

/attempt: #2676

[reddygtvs]

Will take up this issue. I actually ended up facing some other bug related to screenshotting which I'll try to fix on the same commit. (2 identical screenshots being taken lead to a base64 id conflict, which breaks the context array rendering)

[Kitenite]

Nice thanks @reddygtvs !