Bar to see events beyond 72h horizon

If a pipeline is stopped currently, no new events are being generated, leading to events beyond the ideal 72h horizon. It would be useful to view these nevertheless.

**Concept art:**
<img width="660" height="178" alt="Image" src="https://github.com/user-attachments/assets/770867cc-024e-4340-957b-77bf9fb4d5c3" />