feedback list 기능추가. 상단바 추가. 테마 적용 안됨.

viewer/src/components/MainLayout.tsx

@@ -1,16 +1,12 @@
 // src/components/MainLayout.tsx
-import { Link, Outlet, useParams } from "react-router-dom";
-import { Button } from "@/components/ui/button";
+import { Outlet } from "react-router-dom";
+import { Header } from "./Header";
 
 export function MainLayout() {
-	const { projectId, channelId } = useParams();
-
 	return (
-		<div className="container mx-auto p-4 md:p-8">
-			<header className="mb-8 flex justify-between items-center">
-				<h1 className="text-3xl font-bold tracking-tight">피드백 뷰어</h1>
-			</header>
-			<main>
+		<div className="flex flex-col min-h-screen">
+			<Header />
+			<main className="flex-1 p-6">
 				<Outlet />
 			</main>
 		</div>