use workflow as exclusive source of truth for orders page

[prasek]

What was changed

Use workflow state as exclusive source of truth for customer order detail page

• move shipment event listener from ShipmentStatus component to the courier shipment page
• remove shipment event listener from customer order details page (to avoid conflicting sources of truth)

Why?

Shipment event listener in the order details page was causing a brief flickering of shipment status in the order detail.

2. How was this tested:

MacOS 14.3.1 and Chrome 128.0.6613.114 (Official Build) (arm64)

4. Any docs updates needed?

Nope

[tomwheeler]

I tested this and found that I was able to successfully process both single-item and multi-item orders. In all cases, the shipment status was correctly reflected in all open windows.