Resolve "Update group PI pages"

Why is this change being made?

Update group PI pages

• Add direct link to dashboard at the top of the Development dashboard
• Update dashboard filters to all lowercase

• https://about.gitlab.com/handbook/engineering/development/performance-indicators/dev
  • https://about.gitlab.com/handbook/engineering/development/performance-indicators/dev/create/
  • https://about.gitlab.com/handbook/engineering/development/performance-indicators/dev/plan/
  • https://about.gitlab.com/handbook/engineering/development/performance-indicators/dev/manage/
• https://about.gitlab.com/handbook/engineering/development/performance-indicators/ops/
  • https://about.gitlab.com/handbook/engineering/development/performance-indicators/ops/release
  • https://about.gitlab.com/handbook/engineering/development/performance-indicators/ops/package
  • https://about.gitlab.com/handbook/engineering/development/performance-indicators/ops/verify
  • https://about.gitlab.com/handbook/engineering/development/performance-indicators/ops/configure
  • https://about.gitlab.com/handbook/engineering/development/performance-indicators/ops/monitor
• https://about.gitlab.com/handbook/engineering/development/performance-indicators/enablement/
• https://about.gitlab.com/handbook/engineering/development/performance-indicators/growth/
• https://about.gitlab.com/handbook/engineering/development/performance-indicators/secure/
• https://about.gitlab.com/handbook/engineering/development/performance-indicators/threat-management/
• https://about.gitlab.com/handbook/engineering/development/performance-indicators/fulfillment/

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
• Assign this change to the correct DRI
  • If the DRI for the page/s being updated isn’t immediately clear, then assign it to your manager.
  • 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 relate to any part of the project other than updates to content and/or data files please make sure to ping @gl-static-site-editor in a comment for a review and merge. For example changes to .gitlab-ci.yml, JavaScript/CSS/Ruby code or the layout files.

Closes #9591 (closed)