Optimized mobile layout with chat action component

app/store/chat.ts

@@ -256,7 +256,7 @@ export const useChatStore = create<ChatStore>()(
             modelConfig.model
           } model, now time is ${new Date().toLocaleString()}}`,
           id: botMessage.id! + 1,
-        });
+        }); // todo
 
         // get recent messages
         const systemMessages = [];