Merge iOS and Mac app into one

ABS Client/Audiobookshelf swift/Views/ContentView.swift

@@ -0,0 +1,53 @@
+import SwiftUI
+
+struct ContentView: View {
+    @Environment(AppState.self) private var app
+    #if os(iOS)
+    @State private var splashVisible = true
+    #endif
+
+    var body: some View {
+        ZStack {
+            mainContent
+            #if os(iOS)
+            if splashVisible {
+                SplashView()
+                    .zIndex(10)
+                    .transition(.opacity.animation(.easeOut(duration: 0.55)))
+            }
+            #endif
+        }
+        .task { await boot() }
+    }
+
+    @ViewBuilder
+    private var mainContent: some View {
+        Group {
+            if app.auth.isLoggedIn {
+                MainView()
+            } else {
+                LoginView()
+            }
+        }
+        #if os(iOS)
+        .frame(maxWidth: .infinity, maxHeight: .infinity)
+        #else
+        .frame(minWidth: 900, minHeight: 600)
+        #endif
+    }
+
+    private func boot() async {
+        #if os(iOS)
+        // Run bootstrap and minimum splash time in parallel;
+        // dismiss splash only after BOTH complete.
+        await withTaskGroup(of: Void.self) { group in
+            group.addTask { await app.bootstrap() }
+            group.addTask { try? await Task.sleep(for: .seconds(1.2)) }
+            await group.waitForAll()
+        }
+        withAnimation { splashVisible = false }
+        #else
+        await app.bootstrap()
+        #endif
+    }
+}