feat(i18n): 사용자 화면 문구를 I18n 키로 통일한다

SodaLive/Sources/SearchChannel/SearchChannelView.swift

@@ -16,7 +16,7 @@ struct SearchChannelView: View {
     var body: some View {
         BaseView(isLoading: $viewModel.isLoading) {
             VStack(spacing: 0) {
-                DetailNavigationBar(title: "채널 탐색")
+                DetailNavigationBar(title: I18n.SearchChannel.title)
                 
                 HStack(spacing: 0) {
                     Image("ic_title_search_black")
@@ -77,7 +77,7 @@ struct SearchChannelView: View {
                             }
                         }
                     } else {
-                        Text("검색 결과가 없습니다.")
+                        Text(I18n.Search.noResults)
                             .appFont(size: 18.3, weight: .medium)
                             .foregroundColor(.white)
                             .padding(.top, 20)