- Add the ability to pass `miru.Context` to `miru.ext.nav.NavigatorView.send()` instead of an interaction or channel.
- Added `miru.ext.nav.Page` to represent a page with a complex payload.
- Updated `miru.ext.nav.NavigatorView()` and `miru.ext.nav.NavigatorView.swap_pages()` to also accept `miru.ext.nav.Page` instances.