improve sidebar visual style

frontend/src/App.tsx

@@ -8,6 +8,7 @@ import classNames from "classnames";
 import { FaDownload, FaUndo } from "react-icons/fa";
 import { Button } from "@/components/ui/button";
 import { Textarea } from "@/components/ui/textarea";
+import { Separator } from "@/components/ui/separator";
 
 function App() {
   const [appState, setAppState] = useState<"INITIAL" | "CODING" | "CODE_READY">(
@@ -101,18 +102,24 @@ function App() {
                   <CodePreview code={generatedCode} />
                 </div>
               )}
-              <div className="flex gap-x-2">
+              <div className="flex gap-x-2 mt-2">
+                <div className="flex flex-col">
                   <div
                     className={classNames({
                       "scanning relative": appState === "CODING",
                     })}
                   >
                     <img
-                    className="w-[340px]"
+                      className="w-[340px] border border-gray-200 rounded-md"
                       src={referenceImages[0]}
                       alt="Reference"
                     />
                   </div>
+                  <div className="text-gray-400 uppercase text-sm text-center mt-1">
+                    Original Screenshot
+                  </div>
+                </div>
+
                 <div className="bg-gray-400 px-4 py-2 rounded text-sm hidden">
                   <h2 className="text-lg mb-4 border-b border-gray-800">
                     Console
@@ -128,11 +135,13 @@ function App() {
                 </div>
               </div>
 
+              <Separator className="mt-1 mb-2" />
+
               {appState === "CODE_READY" && (
                 <div>
                   <div className="grid w-full gap-2">
                     <Textarea
-                      placeholder="Describe what the AI missed the first time around"
+                      placeholder="Tell the AI what to change..."
                       onChange={(e) => setUpdateInstruction(e.target.value)}
                       value={updateInstruction}
                     />

frontend/src/components/ui/separator.tsx

@@ -0,0 +1,29 @@
+import * as React from "react"
+import * as SeparatorPrimitive from "@radix-ui/react-separator"
+
+import { cn } from "@/lib/utils"
+
+const Separator = React.forwardRef<
+  React.ElementRef<typeof SeparatorPrimitive.Root>,
+  React.ComponentPropsWithoutRef<typeof SeparatorPrimitive.Root>
+>(
+  (
+    { className, orientation = "horizontal", decorative = true, ...props },
+    ref
+  ) => (
+    <SeparatorPrimitive.Root
+      ref={ref}
+      decorative={decorative}
+      orientation={orientation}
+      className={cn(
+        "shrink-0 bg-border",
+        orientation === "horizontal" ? "h-[1px] w-full" : "h-full w-[1px]",
+        className
+      )}
+      {...props}
+    />
+  )
+)
+Separator.displayName = SeparatorPrimitive.Root.displayName
+
+export { Separator }