Refine macOS player controls: add queue, more, previous; drop seek/fullscreen buttons

Add Queue (list.bullet), More (VideoContextMenuView ellipsis), and Play
Previous buttons to the macOS control bar. Play Previous is shown always and
disabled when the queue has no previous item. Remove the skip-back/forward 10s
buttons and the fullscreen button from the bar (arrow-key seek and F-key
fullscreen shortcuts are retained).

Queue reuses the existing cross-platform queue sheet; More reuses the shared
VideoContextMenuView (already !os(tvOS)), styled borderless to match the flat
bar buttons.

Yattee/Views/Player/macOS/MacOSPlayerControlsView.swift

@@ -27,9 +27,11 @@ struct MacOSPlayerControlsView: View {
     var onClose: (() -> Void)? = nil
     var onTogglePiP: (() -> Void)? = nil
     var onPlayNext: (() async -> Void)? = nil
+    var onPlayPrevious: (() async -> Void)? = nil
     var onVolumeChanged: ((Float) -> Void)? = nil
     var onMuteToggled: (() -> Void)? = nil
     var onShowSettings: (() -> Void)? = nil
+    var onShowQueue: (() -> Void)? = nil
 
     // MARK: - State
 
@@ -91,9 +93,11 @@ struct MacOSPlayerControlsView: View {
                         isFullscreen: isFullscreen,
                         onTogglePiP: onTogglePiP,
                         onPlayNext: onPlayNext,
+                        onPlayPrevious: onPlayPrevious,
                         onVolumeChanged: onVolumeChanged,
                         onMuteToggled: onMuteToggled,
                         onShowSettings: onShowSettings,
+                        onShowQueue: onShowQueue,
                         sponsorSegments: playerState.sponsorSegments,
                         onInteractionStarted: {
                             isInteracting = true