Update Staff UXR Responsibilities

Why is this change being made?

The MR helps to bring some parity between the job descriptions of a Staff UX Researcher and Principal Product Manager. Items where parity already exists (and therefore no changes were made) include:

• setting product direction for cross-section and intra-section initiatives
  • Covered by: Personally initiate and conduct research within stage groups, across stages, and across GitLab
• Works across sections
  • Covered by: Practice flexibility by leading and partnering with a variety of teams and disciplines with the goal of delivering research insights.
• Celebrated as a thought leader internally and externally.
  • Covered by: Through your research, build a knowledge base that positions yourself as a thought leader within GitLab. Demonstrate this through your research insights and by sharing your unique point of view.

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 post 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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