[Feature Request]: Create a new hook called "on_page_created"

[aravindkarnam]

What needs to be done?

Create a new hook called "on_page_created" which allows the user to inspect raw HTTP requests/responses, and more

What problem does this solve?

Gives developers access the raw content of requests being sent when a page is crawled (for instance, requests made to other APIs or files, etc.), the responses, and the associated headers.

Target users/beneficiaries

Developers

Current alternatives/workarounds

No response

Proposed approach

Add this hook to execute right after context.newPage() in async_crawler_strategy.py