Platform Bug Fixes

1. Synthetic monitor deletions now update instantly​
Removed monitors now disappear from the list right away, reducing confusion and preventing teams from thinking stale monitors are still active.
2. Alarm duplication keeps your existing setup
Duplicating an alarm now opens a pre-filled creation flow instead of a blank screen, making it faster to reuse alert configurations safely. 
3. Maintenance windows no longer allow invalid time ranges​
The maintenance window flow now blocks “end before start” schedules, which helps avoid accidental gaps or misleading silences in alert coverage. 
4. Dashboard editing is more stable​
Teams can add Lambda widgets, open the create-from-scratch dashboard flow, and use widget action menus without the page crashing or hiding key controls.