"Add panel" preview in Metrics should update automatically
Problem to solve
Updating a preview when adding a panel to Metrics requires to manually click on the "Update preview" button. We can automate that for our users.
Intended users
User experience goal
I want to immediately see the changes I'm making to the panel.
Proposal
Explore how we can:
- Update the panel automatically
- Display an indicator of when the panel was last updated (perhaps we can show status "preview updating" and "preview updated").