Stabilize beta release with warning cleanup and edge-case fixes

SportsTime/Core/Theme/Theme.swift

@@ -75,8 +75,10 @@ final class ThemeManager: @unchecked Sendable {
 
     private func updateAppIcon(for theme: AppTheme) {
         let iconName = theme.alternateIconName
-        guard UIApplication.shared.alternateIconName != iconName else { return }
-        UIApplication.shared.setAlternateIconName(iconName)
+        Task { @MainActor in
+            guard UIApplication.shared.alternateIconName != iconName else { return }
+            UIApplication.shared.setAlternateIconName(iconName)
+        }
     }
 
     private init() {
@@ -460,11 +462,13 @@ enum Theme {
         }
 
         /// Whether the system Reduce Motion preference is enabled.
+        @MainActor
         static var prefersReducedMotion: Bool {
             UIAccessibility.isReduceMotionEnabled
         }
 
         /// Performs a state change with animation, or instantly if Reduce Motion is enabled.
+        @MainActor
         static func withMotion(_ animation: SwiftUI.Animation = spring, _ body: () -> Void) {
             if prefersReducedMotion {
                 body()