Update dashboard docs a bit.
Review Request #12654 — Created Sept. 30, 2022 and submitted
The documentation we had for the dashboard was missing a couple things
that have been added recently. This change adds them:
- The "Overview" view (which we really aught to make the default)
wasn't listed at all.
- The new greyed-out mode for the "Ship It" indicators.
Built HTML and checked output.