feat: moved a2ui surface to a separate panel

src/app/view/a2ui.rs

@@ -6,6 +6,30 @@ use std::collections::{BTreeSet, HashMap, HashSet};
 use time::{Month, OffsetDateTime};
 
 impl App {
+    pub(super) fn a2ui_detail(&self) -> Element<'_, Message> {
+        let content = self.displayed_a2ui_surface().unwrap_or_else(|| {
+            container(
+                column![
+                    text("No A2UI surface").size(24),
+                    text("Interactive surfaces from DS4 will appear here.")
+                        .size(14)
+                        .color(muted_text()),
+                ]
+                .spacing(8)
+                .align_x(Alignment::Center),
+            )
+            .center_x(Length::Fill)
+            .center_y(Length::Fill)
+            .into()
+        });
+        container(content)
+            .max_width(860)
+            .center_x(Length::Fill)
+            .height(Length::Fill)
+            .padding(24)
+            .into()
+    }
+
     pub(crate) fn sync_a2ui_renderer_state(&mut self) {
         let mut markdown = HashMap::new();
         let mut editors = HashMap::new();