Add the following timings to the Grafana dashboard:
- timing.growthExperiments.specialHomepage.navigationDuration
- timing.growthExperiments.specialHomepage.navigationTransferSize
- timing.growthExperiments.specialHomepage.paintStartTime
- timing.growthExperiments.newImpact.{desktop/mobile-overlay}.mounted
- timing.growthExperiments.ComputedUserImpactLookup.getExpensiveUserImpact

