[Feature]: Improve final report generation mechanism

There are three reports generated when the tests are completed:
1. Final Report -> Containing all the logs
2. Failure Report -> Contains the list of tests that failed
3. 'report' -> A Summarized report generated by a PaLM2 API based summarizer and troubleshooter.

You can add suitable changes to improve these reports but before that do discuss them before starting with any implementations.