Fix appearance color bug

JellyfinPlayer/App/AppDelegate.swift

@@ -7,6 +7,7 @@
   * Copyright 2021 Aiden Vigue & Jellyfin Contributors
   */
 
+import SwiftUI
 import UIKit
 
 class AppDelegate: NSObject, UIApplicationDelegate {
@@ -17,16 +18,10 @@ class AppDelegate: NSObject, UIApplicationDelegate {
         // Lazily initialize datastack
         let _ = SwiftfinStore.dataStack
         
-        setupAppearance()
-        
         return true
     }
 
     func application(_ application: UIApplication, supportedInterfaceOrientationsFor window: UIWindow?) -> UIInterfaceOrientationMask {
         AppDelegate.orientationLock
     }
-    
-    private func setupAppearance() {
-//        UIApplication.shared.windows.first?.overrideUserInterfaceStyle = appAppearance.style
-    }
 }

JellyfinPlayer/App/JellyfinPlayerApp.swift

@@ -18,7 +18,12 @@ struct JellyfinPlayerApp: App {
 
     var body: some Scene {
         WindowGroup {
-            EmptyView()
+            // TODO: Replace with a SplashView
+            Color(appAppearance.style == .dark ? UIColor.black : UIColor.white)
+                .ignoresSafeArea()
+                .onAppear {
+                    setupAppearance()
+                }
                 .withHostingWindow { window in
                     window?.rootViewController = PreferenceUIHostingController(wrappedView: MainCoordinator().view())
                 }
@@ -30,6 +35,10 @@ struct JellyfinPlayerApp: App {
                 }
         }
     }
+    
+    private func setupAppearance() {
+        UIApplication.shared.windows.first?.overrideUserInterfaceStyle = appAppearance.style
+    }
 }
 
 // MARK: Hosting Window