feat: add element inspector with chat integration

- Implement element inspector tool for preview iframe with hover/click detection
- Add inspector panel UI to display element details and styles
- Integrate selected elements into chat messages for reference
- Style improvements for chat messages and scroll behavior
- Add inspector script injection to preview iframe
- Support element selection and context in chat prompts
-Redesign Messgaes, Workbench and Header for a more refined look allowing more workspace in view

app/lib/hooks/StickToBottom.tsx

@@ -133,6 +133,7 @@ function Content({ children, ...props }: StickToBottomContentProps) {
       <div {...props} ref={context.contentRef}>
         {typeof children === 'function' ? children(context) : children}
       </div>
+      {/* Blur effect overlay */}
     </div>
   );
 }