Present row sheets through the shared sheet host

Each video row carried its own sheets: tappableVideo added the queue
action and resume sheets, the context menu and swipe actions added
add-to-playlist and download options, so a row could declare up to six
sheets, owned by a row that a list may recycle.

Rows now present those through the nearest sheet host, as does the
video info view's resume prompt. The queue action sheet for a tapped
description link becomes a global request instead of being declared
at both the app root and the expanded player.

Sheets take the color scheme where their host sits, so the floating
details panel's dark override no longer reaches them and the
presentationColorScheme workaround is gone.

Yattee/Views/Components/VideoContextMenu.swift

@@ -49,8 +49,6 @@ struct VideoContextMenuModifier: ViewModifier {
     var startTime: Double? = nil
     var watchProgress: Double? = nil
 
-    @State private var showingPlaylistSheet = false
-    @State private var showingDownloadSheet = false
     @State private var showingDeleteDownloadConfirmation = false
     @State private var downloadToDelete: Download?
     @State private var menuRefreshID = UUID()
@@ -64,8 +62,6 @@ struct VideoContextMenuModifier: ViewModifier {
                     customActions: customActions,
                     context: context,
                     startTime: startTime,
-                    showingPlaylistSheet: $showingPlaylistSheet,
-                    showingDownloadSheet: $showingDownloadSheet,
                     showingDeleteDownloadConfirmation: $showingDeleteDownloadConfirmation,
                     downloadToDelete: $downloadToDelete,
                     appEnvironment: appEnvironment
@@ -79,8 +75,6 @@ struct VideoContextMenuModifier: ViewModifier {
                     customActions: customActions,
                     context: context,
                     startTime: startTime,
-                    showingPlaylistSheet: $showingPlaylistSheet,
-                    showingDownloadSheet: $showingDownloadSheet,
                     showingDeleteDownloadConfirmation: $showingDeleteDownloadConfirmation,
                     downloadToDelete: $downloadToDelete,
                     appEnvironment: appEnvironment
@@ -98,13 +92,7 @@ struct VideoContextMenuModifier: ViewModifier {
                 .environment(\.appEnvironment, appEnvironment)
             })
             #endif
-            .sheet(isPresented: $showingPlaylistSheet) {
-                PlaylistSelectorSheet(video: video)
-            }
             #if !os(tvOS)
-            .sheet(isPresented: $showingDownloadSheet) {
-                DownloadQualitySheet(video: video)
-            }
             .alert(String(localized: "videoInfo.download.remove.title"), isPresented: $showingDeleteDownloadConfirmation) {
                 Button(String(localized: "common.cancel"), role: .cancel) {}
                 Button(String(localized: "videoInfo.download.remove.confirm"), role: .destructive) {
@@ -130,13 +118,12 @@ struct VideoContextMenuModifier: ViewModifier {
 /// All observable values are snapshotted at init time to prevent redraws during playback.
 struct VideoContextMenuContent: View {
     @Environment(\.appEnvironment) private var appEnvironment
+    @Environment(\.presentAppSheet) private var presentAppSheet
 
     let video: Video
     var customActions: [VideoContextAction] = []
     var context: VideoContextMenuContext = .default
     var startTime: Double? = nil
-    @Binding var showingPlaylistSheet: Bool
-    @Binding var showingDownloadSheet: Bool
     @Binding var showingDeleteDownloadConfirmation: Bool
     @Binding var downloadToDelete: Download?
 
@@ -168,8 +155,6 @@ struct VideoContextMenuContent: View {
         customActions: [VideoContextAction] = [],
         context: VideoContextMenuContext = .default,
         startTime: Double? = nil,
-        showingPlaylistSheet: Binding<Bool>,
-        showingDownloadSheet: Binding<Bool>,
         showingDeleteDownloadConfirmation: Binding<Bool> = .constant(false),
         downloadToDelete: Binding<Download?> = .constant(nil),
         appEnvironment: AppEnvironment? = nil
@@ -178,8 +163,6 @@ struct VideoContextMenuContent: View {
         self.customActions = customActions
         self.context = context
         self.startTime = startTime
-        self._showingPlaylistSheet = showingPlaylistSheet
-        self._showingDownloadSheet = showingDownloadSheet
         self._showingDeleteDownloadConfirmation = showingDeleteDownloadConfirmation
         self._downloadToDelete = downloadToDelete
 
@@ -427,7 +410,7 @@ struct VideoContextMenuContent: View {
         // Add to playlist
         if showAddToPlaylist {
             Button {
-                showingPlaylistSheet = true
+                presentAppSheet(.addToPlaylist(video))
             } label: {
                 Label(String(localized: "video.context.addToPlaylist"), systemImage: "text.badge.plus")
             }
@@ -440,7 +423,7 @@ struct VideoContextMenuContent: View {
     /// Starts a download either automatically or by showing the quality sheet.
     private func startDownload(for video: Video) {
         guard let appEnvironment else {
-            showingDownloadSheet = true
+            presentAppSheet(.downloadOptions(video))
             return
         }
 
@@ -494,7 +477,7 @@ struct VideoContextMenuContent: View {
                 }
             }
         } else {
-            showingDownloadSheet = true
+            presentAppSheet(.downloadOptions(video))
         }
     }
     #endif
@@ -613,8 +596,6 @@ struct VideoContextMenuView: View {
     var buttonBackgroundStyle: ButtonBackgroundStyle = .none
     var theme: ControlsTheme = .dark
 
-    @State private var showingPlaylistSheet = false
-    @State private var showingDownloadSheet = false
     @State private var showingDeleteDownloadConfirmation = false
     @State private var downloadToDelete: Download?
     @State private var refreshID = UUID()
@@ -628,8 +609,6 @@ struct VideoContextMenuView: View {
             VideoContextMenuContent(
                 video: video,
                 context: .player,
-                showingPlaylistSheet: $showingPlaylistSheet,
-                showingDownloadSheet: $showingDownloadSheet,
                 showingDeleteDownloadConfirmation: $showingDeleteDownloadConfirmation,
                 downloadToDelete: $downloadToDelete,
                 appEnvironment: appEnvironment
@@ -645,12 +624,6 @@ struct VideoContextMenuView: View {
         .menuStyle(.borderlessButton)
         .fixedSize()
         #endif
-        .sheet(isPresented: $showingPlaylistSheet) {
-            PlaylistSelectorSheet(video: video)
-        }
-        .sheet(isPresented: $showingDownloadSheet) {
-            DownloadQualitySheet(video: video)
-        }
         .alert(String(localized: "videoInfo.download.remove.title"), isPresented: $showingDeleteDownloadConfirmation) {
             Button(String(localized: "common.cancel"), role: .cancel) {}
             Button(String(localized: "videoInfo.download.remove.confirm"), role: .destructive) {