Notification: send Notification when service details change durig non-OK state

CheckMK currently provides periodic notifications during service problems based on the duration of a non-OK state. However, in some cases customers occasionally want to be re-notified when ever the service details change during these periods. This occurs when new information is added or existing messages are updated. Implementing such a feature would allow recipients to receive alerts whenever significant changes to service details occur, ensuring they are informed of important updates.
Example:
Message at 18:01:03: Failure in Module 1
Message at 18:06:07: Failure in Module 1, Failure in Module 2
Message at 18:09:08: Failure in Module 2
In this scenario, the service remained in a critical state throughout. With the proposed feature, the alert recipient would receive three alerts based on updates to the messages in the details, providing timely information on service changes.