BreadcrumbEvent.ExtraData not captured in MauiEventsBinder

[jamescrosswell]

@jamescrosswell I'm sorry for this late review but I just realized there's a huge bug here.

What about breadcrumb.ExtraData? I think you completely missed it.

Also I don't find the ExtraData type very convenient.

I think that this could be more convenient:

public record BreadcrumbEvent(
    object? Sender,
    string EventName,
    params (string Key, string Value)[] ExtraData
);

Originally posted by @albyrock87 in #3997 (comment)