Support collapsible/expandable chart groups
Problem to solve
Right now, if a group of metrics on the dashboard isn't displaying, we just see a header with no additional information about why the metric group isn't showing. As a first step, we should make these headers expand/collapse so that we can introduce a metric group empty state that gives users more information about why the group's metrics aren't appearing on their dashboard.
Intended users
Further details
Proposal
Introduce a caret in the chart group header:
Permissions and Security
Documentation
Testing
What does success look like, and how can we measure that?
Links / references
Edited by Amelia Bauerly