Redesign Hope iOS UI, harden playback, and document project handoff

Sources/App/VoiceApp.swift

@@ -12,7 +12,15 @@ struct VoiceApp: App {
     var body: some Scene {
         WindowGroup {
             ConversationView(settings: settings)
-                .preferredColorScheme(.dark)
+                .tint(HopeStyle.tint)
         }
     }
 }
+
+enum HopeStyle {
+    static let tint = Color(uiColor: UIColor { traits in
+        traits.userInterfaceStyle == .dark
+            ? UIColor(red: 0.43, green: 0.68, blue: 1, alpha: 1)
+            : UIColor(red: 0.12, green: 0.32, blue: 0.68, alpha: 1)
+    })
+}