T10a feedback: toasts with undo and a hover-held clock, notifications and their center, alert, banner, callout, inline and status messages, empty state; root focus scopes take lost focus

src/shell/windows.rs

@@ -47,6 +47,7 @@ impl<T: IntoElement + Clone + 'static> Render for Hosted<T> {
             })
             .child(
                 FocusScope::new(&self.focus)
+                    .root()
                     .size_full()
                     .flex()
                     .flex_col()