Initial IronStorage project structure

apple/Sources/App/IronStorageApp.swift

@@ -0,0 +1,20 @@
+import SwiftUI
+
+@main
+struct IronStorageApp: App {
+    var body: some Scene {
+        WindowGroup {
+            ContentView()
+        }
+    }
+}
+
+private struct ContentView: View {
+    var body: some View {
+        ContentUnavailableView(
+            "No Password Store",
+            systemImage: "lock.shield",
+            description: Text("Open or clone a store in \(productName()) to begin.")
+        )
+    }
+}