[Admin dashboard] - Show multiple lists under a user or team

[jldec]

The admin dashboard should able to represent the relationship between a user and other entities like usage and teams. Currently we only show workspaces.

The same requirement exists for teams e.g. to show team members + team projects + team usage.

How about additng tab navigation to toggle between differrent lists inder the user or team detail.

[jldec]

cc: @gtsiolis

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[gtsiolis]

From UX perspective, here's how this could look like:

BEFORE	AFTER

Marking this as https://github.com/gitpod-io/gitpod/labels/good-first-issue.