Vn-acuvity-poc- Dependencies + Adding popup window support

[tanishq-acu]

Added:

1. Resolving dependencies
2. LinkedPage to allow the agent to interact with popup windows and go back to previous context when the popup window is closed

• This could potentially also work well with providing the ability to close the current focused tab to the agent in the future

These address issues #64 and #63

Testing:

• Although the current test suite in the repository appears to be broken when you clone the repository, the number of passed/failed tests still remains the same, indicating no critical functionality has changed
• Further, automated testing on the agent functionality with the prompt "Go to website and sign in to google with <google credentials/google credentials tool>" has been confirmed to work if you provide the agent with a way to enter some dummy credentials.

[tanishq-acu]

@vnawrath @satyamsi from Acuvity asked me to tag you to take a look at this PR and provide feedback.

[vnawrath]

Thank you for addressing the issues. I'll have to play with it a little bit to see if there are any edge cases or situations where the agent get's it wrong.
It's also unfortunate that the _ensure_page functionality is re-implemented in each of the implementations of the playwright plugin, so we might consider unifying this, and perhaps making this a general multi-page support.
Feel free to merge, since it addresses the issues you mentioned.