Chapters: allow user to disable thumbnails

Chapters have their own section is the settings. The users can decide if chapter thumbnails should be shown or not. Also they can decide to only show thumbnails if they are not the same.

The VideoDetailsView had to be modified, to avoid compiler type-checking errors.

Shared/Settings/PlayerSettings.swift

@@ -32,6 +32,8 @@ struct PlayerSettings: View {
 
     @Default(.showInspector) private var showInspector
     @Default(.showChapters) private var showChapters
+    @Default(.showChapterThumbnails) private var showThumbnails
+    @Default(.showChapterThumbnailsOnlyWhenDifferent) private var showThumbnailsOnlyWhenDifferent
     @Default(.expandChapters) private var expandChapters
     @Default(.showRelated) private var showRelated
 
@@ -80,8 +82,6 @@ struct PlayerSettings: View {
                 Section(header: SettingsHeader(text: "Info".localized())) {
                     expandVideoDescriptionToggle
                     collapsedLineDescriptionStepper
-                    showChaptersToggle
-                    expandChaptersToggle
                     showRelatedToggle
                     #if os(macOS)
                         HStack {
@@ -93,6 +93,13 @@ struct PlayerSettings: View {
                         inspectorVisibilityPicker
                     #endif
                 }
+
+                Section(header: SettingsHeader(text: "Chapters".localized())) {
+                    showChaptersToggle
+                    showThumbnailsToggle
+                    showThumbnailsWhenDifferentToggle
+                    expandChaptersToggle
+                }
             #endif
 
             let interface = Section(header: SettingsHeader(text: "Interface".localized())) {
@@ -284,7 +291,19 @@ struct PlayerSettings: View {
         }
 
         private var showChaptersToggle: some View {
-            Toggle("Chapters (if available)", isOn: $showChapters)
+            Toggle("Show chapters", isOn: $showChapters)
+        }
+
+        private var showThumbnailsToggle: some View {
+            Toggle("Show thumbnails", isOn: $showThumbnails)
+                .disabled(!showChapters)
+                .foregroundColor(showChapters ? .primary : .secondary)
+        }
+
+        private var showThumbnailsWhenDifferentToggle: some View {
+            Toggle("Show thumbnails only when unique", isOn: $showThumbnailsOnlyWhenDifferent)
+                .disabled(!showChapters || !showThumbnails)
+                .foregroundColor(showChapters && showThumbnails ? .primary : .secondary)
         }
 
         private var expandChaptersToggle: some View {