feat: support dark mode

web/src/app/_components/fav-icon.tsx

@@ -1,10 +1,20 @@
 // Copyright (c) 2025 Bytedance Ltd. and/or its affiliates
 // SPDX-License-Identifier: MIT
 
-export function FavIcon({ url, title }: { url: string; title?: string }) {
+import { cn } from "~/lib/utils";
+
+export function FavIcon({
+  className,
+  url,
+  title,
+}: {
+  className?: string;
+  url: string;
+  title?: string;
+}) {
   return (
     <img
-      className="h-4 w-4 rounded-full bg-slate-100 shadow-sm"
+      className={cn("bg-accent h-4 w-4 rounded-full shadow-sm", className)}
       width={16}
       height={16}
       src={new URL(url).origin + "/favicon.ico"}