feat: a2ui interface to enablee the LLM to give structured information

src/app/view/preferences.rs

@@ -119,6 +119,12 @@ impl App {
                 .spacing(10)
                 .align_y(Alignment::Center),
                 text("Enter a whole number from 1 to 1440.").size(12),
+                hint(
+                    checkbox(self.preference_draft.a2ui_enabled)
+                        .label("Enable interactive A2UI chat surfaces")
+                        .on_toggle(Message::PreferenceA2uiChanged),
+                    "Lets the local model build validated native charts, tables, forms and other interactive chat surfaces. Turning it off removes the A2UI catalog from the system prompt.",
+                ),
             ]
             .spacing(10),
         );