fix(settings): guard .navigationLink pickerStyle behind !os(tvOS)

NavigationLinkPickerStyle is unavailable on tvOS; use .automatic there.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: github-actions[bot]

PVUI/Sources/PVSwiftUI/Settings/SettingsSwiftUI.swift

@@ -1887,7 +1887,11 @@ private struct VideoSection: View {
                             icon: .sfSymbol(scalingMode.symbolName),
                             showChevron: false)
             }
+            #if os(tvOS)
+            .pickerStyle(.automatic)
+            #else
             .pickerStyle(.navigationLink)
+            #endif
             ThemedToggle(isOn: $imageSmoothing) {
                 SettingsRow(title: "Image Smoothing",
                             subtitle: "Smooth scaled graphics. Off for sharp pixels.",