Create "Last x days" group-by
## TL;DR Add new group-by component with options Last 30 days / Last 90 days, to be used in the respective panel. ## Implementation Details If possible to re-use another group-by of the existing panels, explore that option! 1. Add new component for group-by selection. 2 options: Last 30 days and Last 90 days 2. Use value for selected group-by that GraphQL API expects for that argument 3. Set default to 90 days 4. Import in new panel ## Testing Approach - [x] Unit tests - [ ] Integration tests - [ ] Manual validation steps
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