Unable to export certain media network requests in HAR file

[hrajwade96]

There is an issue when exporting network requests with specific file types (e.g., .webp, .pdf, etc.) to a HAR file. The problem occurs due to an encoding error, which prevents these requests from being properly included in the exported file.

[hrajwade96]

I had previously raised a PR (#9134)
that also addressed this issue along with a few additional enhancements and fixes. Since that PR was closed due to inactivity, I will be re-raising a new PR with these changes.