fix(web-evals): remove redundant font imports and add copyPrompt feedback

- Remove duplicate Fraunces/IBM Plex Sans imports from recommendations/layout.tsx
  (already provided by shared evals/layout.tsx)
- Add visual "Copied!" feedback to copyPrompt button in objective-content.tsx
  (follows existing copy-settings-button.tsx pattern)

apps/web-roo-code/src/app/evals/recommendations/layout.tsx

@@ -1,9 +1,5 @@
 import type { ReactNode } from "react"
-import { Fraunces, IBM_Plex_Sans } from "next/font/google"
-
-const display = Fraunces({ subsets: ["latin"], variable: "--font-display" })
-const body = IBM_Plex_Sans({ subsets: ["latin"], weight: ["400", "500", "600"], variable: "--font-body" })
 
 export default function RecommendationsLayout({ children }: { children: ReactNode }) {
-	return <div className={`${body.variable} ${display.variable} [font-family:var(--font-body)]`}>{children}</div>
+	return <>{children}</>
 }