Docs: Update dashboard documentation, including new search (#53050)
Docs: Update dashboard documentation, including new search (#53050)

Co-authored-by: Chris Moyer <7d28934f2be98f3f7337e2692d772445f37d9039@grafana.com>
grafana/grafana,grafana/grafana,grafana/grafana,grafana/grafana,grafana/grafana,grafana/grafana,grafana/grafana