Fix broken Manage team tables

Why is this change being made?

We recently converted Manage EMs to Fullstack EMs in gitlab-org/manage/general-discussion#17454. This change also led to a change of reporting relationships and caused the Manage team tables in the handbook to not render correctly.

This MR fixes the broken Manage team table on https://about.gitlab.com/handbook/engineering/development/dev.

It also formats team member role links to be consistent with the rest of the page, i.e., the link only contains the role and not the team.

Before

After

Team
Auth
Compliance
Import
Optimize
Workspace

Author Checklist

• Provided a concise title for the MR
• Added a description to this MR explaining the reasons for the proposed change, per say-why-not-just-what
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• Assign reviewers for this change to the correct DRI(s)
  • 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 in 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.

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