Alerts should trigger once per period for eternity, year, month, week & day periods

Current behaviour

Alerts configured at the various utilisation levels currently will trigger once per 24hr period. However, this is problematic for limits which are configured for the longer periods such as those in the issue summary. The problem here especially with week, month & year periods is that they will trigger every 24hrs until the period has elapsed meaning all limits for periods less than that, such as; minute & hour, will never trigger.

Additionally it means daily alerts triggering for weeks or months on limits that reached the current alerting utilisation level which brings no benefit and creates a lot of noise not to mention effectively disabling alerts for all the lesser periods.

Expected behaviour

Alerts should only trigger once per period for any period >=24hrs. This should be the default behaviour rather than configurable.