Surface empty state for consolidated menu

Proposal

Surface a relevant empty state for the consolidated flyout menu. The video below is to show how this would function. Details of the UI copy is down in the Empty state details.

flyout-hover-updated

Figma specs: https://www.figma.com/file/nQOkDbOOKl35uE7C1Y2C9Q/Simplify-the-menu-options-for-project%2C-groups%2C-and-more?node-id=308%3A10340

Empty state details

• Milestones
  • Heading: Milestone dashboard
  • Description: Track issues and merge requests. Organize your work to meet broader goals on time.
  • Illustration: https://gitlab-org.gitlab.io/gitlab-svgs/illustrations?q=illustrations%2Fmilestone_burndown_chart.svg
• Snippets
  • Heading: Snippets dashboard
  • Description: Reuse smaller pieces of code among several projects. Document one-off scripts and functions.
  • Illustration: https://gitlab-org.gitlab.io/gitlab-svgs/illustrations?q=illustrations%2Fsnippets_empty.svg
• Activity
  • Heading: Activity dashboard
  • Description: Get a cross-project overview of push events, merge events, issue events, and comments.
  • Illustration: https://gitlab-org.gitlab.io/gitlab-svgs/illustrations?q=illustrations%2Fmerge_request_changes_empty.svg
• Environments
  • Heading: Environments dashboard
  • Description: Get the operational health of multiple environments, grouped by projects.
  • Illustration: https://gitlab-org.gitlab.io/gitlab-svgs/illustrations?q=illustrations%2Fpipelines_pending.svg
• Operations
  • Heading: Operations dashboard
  • Description: Check the operational health of your projects. View summaries of each project, including pipeline and alert status.
  • Illustration: https://gitlab-org.gitlab.io/gitlab-svgs/illustrations?q=illustrations%2Fpipelines_pending.svg
• Security
  • Heading: Security dashboard
  • Description: View vulnerability statistics, with up to 365 days of historical data. Updated daily.
  • Illustration: https://gitlab-org.gitlab.io/gitlab-svgs/illustrations?q=illustrations%2Fsecurity-dashboard-empty-state.svg
• Admin
  • Heading: GitLab Admin Area
  • Description: Access your admin dashboard. Administer your projects, users, groups, jobs, runners, and Gitaly servers.
  • Illustration: https://gitlab-org.gitlab.io/gitlab-svgs/illustrations?q=illustrations%2Fuser-not-logged-in.svg