feat: add profile pic in the result

[danyalg]

This pull request enhances the profile_data dictionary by concatenating multiple picture URLs from the raw_profile_data source. Specifically, it initializes profile_data["picture_url"] as an empty string and appends the following URLs:

Changes Made
Initialized profile_data["picture_url"] as an empty string.
Appended raw_profile_data["displayPictureUrl"] to profile_data["picture_url"].
Appended raw_profile_data["img_100_100"] to profile_data["picture_url"], separated by a space.
Expose in final result

[endernoke]

Thanks so much for working on this feature!

I've noticed that accessing the profile picture URL seems to require LinkedIn authentication, so the frontend and end users can't use the URL directly.

One possible solution would be the backend fetch the image using an authenticated request and then serve it to the frontend.

Also, instead of treating the pic as a profile section, I think it's more user-friendly to display it directly next to the ingest title.

Thanks again, lmk what you think about these modifications.