Improved heroes page adding topic and areas of interest

Why is this change being made?

Related to #14245

This MR updates the heroes page by showing other informations, such as domains of expertise and areas of interest, and add a "detail" view similar to the one present on the GitLab Team members page, where additional informations are shown 🙂

Before After
Schermata_2022-12-01_alle_21.45.23 image

Author Checklist

  • Provided a concise title for this Merge Request (MR)
  • Added a description to this MR explaining the reasons for the proposed change, per say why, not just what
    • Copy/paste the Slack conversation to document it for later, or upload screenshots. Verify that no confidential data is added.
  • Assign reviewers for this MR to the correct Directly Responsible Individual/s (DRI)
    • If the DRI for the page/s being updated isn’t immediately clear, then assign it to one of the people listed in the Maintained by section on the page being edited
    • If your manager does not have merge rights, please ask someone to merge it AFTER it has been approved by your manager in #mr-buddies
  • If the changes affect team members, or warrant an announcement in another way, please consider posting an update in #whats-happening-at-gitlab linking to this MR
    • If this is a change that directly impacts the majority of global team members, it should be a candidate for #company-fyi. Please work with internal communications and check the handbook for examples.

Edited by Marco Zille