Improved event delivery tracking

We have introduced new elements in the dashboard to improve developer experience, by making the relationship between events and deliveries more visible and actionable.

On the events list at the "Developers" section:

• A new delivery status indicator shows the delivery success rate for each event:
  • ✅ Green: All deliveries successful
  • 🟡 Yellow: Some still pending
  • 🔴 Red: At least one failed
  • “–”: No deliveries yet
• The delivery status is also visible in each object’s events page.

On the detailed event screen:

• Details tab: Now includes the same delivery status attribute.

• New Deliveries tab:
  • Lists all deliveries (child events) for a given parent event.
  • Includes delivery ID, webhook channel, delivery status, and actions (e.g. Retry).
  • Clicking a row opens the child event details.