feat: moved a2ui surface to a separate panel

src/app/view/chat.rs

@@ -293,21 +293,8 @@ impl App {
             let transcript = scrollable(messages)
                 .id(chat_scroll_id())
                 .height(Length::Fill);
-            let workspace: Element<'_, Message> =
-                if let Some(surface) = self.displayed_a2ui_surface() {
-                    column![
-                        container(surface).height(Length::FillPortion(1)),
-                        rule::horizontal(1),
-                        container(transcript).height(Length::FillPortion(1)),
-                    ]
-                    .height(Length::Fill)
-                    .spacing(8)
-                    .into()
-                } else {
-                    transcript.into()
-                };
             let conversation = column![
-                workspace,
+                transcript,
                 container(composer_content,)
                     .padding(16)
                     .width(Length::Fill)