feat(image): 메인 홈, 채팅 - 톡 페이지에 DownsampledKFImage 적용

- 수평 리스트 HStack → LazyHStack으로 교체해 프리로딩/메모리 개선

SodaLive/Sources/Home/HomeCreatorRankingItemView.swift

@@ -22,12 +22,11 @@ struct HomeCreatorRankingItemView: View {
     var body: some View {
         ZStack(alignment: .topLeading) {
             VStack(spacing: 0) {
-                KFImage(URL(string: item.profileImageUrl))
-                    .cancelOnDisappear(true)
-                    .resizable()
-                    .scaledToFill()
-                    .frame(width: 84, height: 84, alignment: .top)
-                    .clipShape(Circle())
+                DownsampledKFImage(
+                    url: URL(string: item.profileImageUrl),
+                    size: CGSize(width: 84, height: 84)
+                )
+                .clipShape(Circle())
                                
                 Text(item.nickname)
                     .font(.custom(Font.preRegular.rawValue, size: 16))