Clean up shared UI runtime state

app-rust/examples/transcript.rs

@@ -3,12 +3,12 @@ use ai_app::client::transcript_fold::{QuestionCard, TranscriptItem, TranscriptRo
 use iris::prelude::*;
 
 fn main() {
-    DefaultApp::<Client>::run();
+    DesktopApp::<Client>::run();
 }
 
-#[derive(DefaultUiState)]
+#[derive(DesktopUiState)]
 pub struct Client {
-    ui_state: DefaultUiState,
+    ui_state: DesktopUiState,
     #[allow(dead_code)]
     screen: ai_app::ui::TranscriptScreen,
 }
@@ -157,13 +157,13 @@ fn fold_event(items: Vec<Item>, seq: u64) -> Vec<Item> {
 > A quoted line, to show the bar and the indent.
 ";
 
-impl DefaultAppState for Client {
+impl DesktopAppState for Client {
     fn new(
-        mut ui_state: DefaultUiState,
-        rsc: &mut DefaultRsc<Self>,
+        mut ui_state: DesktopUiState,
+        rsc: &mut DesktopRsc<Self>,
         _: Proxy<Self::Event>,
     ) -> Self {
-        let screen = ai_app::ui::build(rsc, &mut ui_state, synthetic_rows());
+        let mut screen = ai_app::ui::build(rsc, &mut ui_state, synthetic_rows());
         screen.push_row(
             rsc,
             &FoldedRow::Single(TranscriptItem::CommandRow {