optimize the appicon of iOS

ios/OralTrainer/Views/PlayerSectionView.swift

@@ -5,6 +5,7 @@ struct PlayerSectionView: View {
     @ObservedObject var controller: PlayerController
     var showsContinuousToggle: Bool
     @Binding var continuousPlayback: Bool
+    var showsSubtitle: Binding<Bool>? = .constant(true)
     var onFullscreen: () -> Void
 
     @State private var progressDragging = false
@@ -13,7 +14,9 @@ struct PlayerSectionView: View {
     var body: some View {
         VStack(spacing: 0) {
             playerSurface
-            sentencePanel
+            if showsSubtitle?.wrappedValue == true {
+                sentencePanel
+            }
         }
         .padding(.horizontal, 16)
     }