Keep the system accent color on tvOS

Views reading resolvedAccentColor directly (comment links, home
shortcuts, bookmarks, player panels) picked up accent colors synced
from iOS via iCloud. tvOS now always resolves to the system default.

Yattee/Core/Settings/SettingsManager+General.swift

@@ -126,6 +126,11 @@ extension SettingsManager {
     /// dynamic platform color that resolves per trait environment, so all consumers
     /// (root tint and direct readers) adapt to light/dark automatically.
     var resolvedAccentColor: Color {
+        #if os(tvOS)
+        // tvOS keeps the system default accent; user-picked colors (possibly
+        // synced from iOS via iCloud) must never override it.
+        return .accentColor
+        #else
         let light = resolvedLightAccentColor
         guard useSeparateDarkAccentColor else { return light }
         let dark = resolvedDarkAccentColor
@@ -139,6 +144,7 @@ extension SettingsManager {
             UIColor(traits.userInterfaceStyle == .dark ? dark : light)
         })
         #endif
+        #endif
     }
 
     // MARK: - App Icon Settings