## What does this PR do?
1. cal.com/sales page is a special case where embed-iframe exists in top as well as in iframe. This causes a looping of events somehow due to embed-iframe firing events and those being received by the top embed-iframe.
2. Added new `navigatedToBooker` event to know when the user lands on booker page.
Corresponding PR in website that uses `navigatedToBooker` event and has a demo as well https://github.com/calcom/website/pull/741
Earlier added `routed` event seems to happen too early
## Type of change
- Bug fix (non-breaking change which fixes an issue)
## How should this be tested?
- Simply navigate to booker and wait for the event.
## Mandatory Tasks
- [x] Make sure you have self-reviewed the code. A decent size PR without self-review might be rejected.
## Tests
- Didn't add any tests for this as the changed seems straightforward
## Checklist
- I haven't added tests that prove my fix is effective or that my feature works
