Alert component : full notification config

Alert component should have the same options as notify (user can choose title, message, icon, etc…).

(And a for_x_minutes variable can be welcomed to use in the message e. g. : “The garage door has been opened for for_x_minutes”)

Edit :
{{relative_time(states.binary_sensor.YOUR_SENSOR_NAME.last_changed)}}
works to display minutes since the alert has been triggered.