Update global search comments results UI

What does this MR do and why?

• Updates font weights/colors/sizes
• Adds user avatar (check if this is okay)
• Remove comment icon
  • Seems unnecessary since the filter is comments

Screenshots or screen recordings

Before	After

How to set up and validate locally

• Go to search page http://127.0.0.1:3000/search
• Search something, filter by comments

Links

• ✂️ UX Paper Cuts 17.0 → Search and Filter (#444717 - closed)