Send snapshot of alert

[mattabrams]

this is possible once more in Grafana 9. See this thread for details and upvote it works:

Grafana 9 Alert Migrations: legacy alert screenshot settings aren't automatically migrated to new alerts

Hi users! Grafana 9 adds support for images to grafana alerts! This is a feature that legacy alerting had - but it’s new for unified grafana alerting. That said, we want to point out that if you’re migrating from legacy alerting - there are a few configuration steps to add images in new alerts. These settings aren’t migrated from the legacy alerting section of your configuration file. A short list of helpful docs to review for managing and configuring migrated grafana alerts: Add i…