Send time error occurred in payload

[eanakashima]

We currently show the time the error was received as the starting point in the breadcrumb list, but if the client clock is far off from our server time, it can look like there's a gap between all the breadcrumbs and the error. This adds a "Device.time" timestamp like we have for our mobile notifiers, so we can show the whole breadcrumb list in client time. The new version will look like this, changing the top field from "Error Received" to "Error Occurred" in the UI:

👋 @kattrali @wordofchristian

[foxyblocks]

👍 looks good

[kattrali]

I think device should be lowercase (though it seems to work both ways?), to match the other implementations. I’ll make a note of it in the API spec though. Looks good ⭐

[GrahamCampbell]

This is something we might want to do on the PHP notifier too, in particular if we have batch sending enabled.