Remove Route-based Dialogs (and breadcrumbs are great)

[kentcdodds]

Route-based dialogs are problematic. Dialogs are still fine in some situations. We just don't like the route-based kind. So we've removed them in favor of normal routes.

Here's the decision document: https://github.com/epicweb-dev/epic-stack/blob/main/docs/decisions/023-route-based-dialogs.md

Here's the commit: a55ca78

Here's a demo of the new experience:

no-dialogs.mp4