Additional info in alert message

[rozetko]

It would be nice to be able to select a DB field to render in alert message, e.g. Holiday today ({{name}}) (name is the DB field)

For example, let's assume you have a table in DB with time,value,name fields. You can write SELECT time, value from table query to get detections but you can't do SELECT time, name, value from table because both Hastic and Grafana don't work with this format.