Align desktop initializer arguments with builders

examples/message_list/desktop.rs

@@ -6,7 +6,5 @@ mod app;
 
 fn main() {
     let attributes = WindowAttributes::default().with_inner_size(LogicalSize::new(420.0, 900.0));
-    DesktopApp::<DesktopUiState>::run_with_attributes(attributes, |ui_state, rsc| {
-        app::build(rsc, ui_state)
-    });
+    DesktopApp::<DesktopUiState>::run_with_attributes(attributes, app::build);
 }