chore(demo): replace en dash with em dash

Author: fadi-george

examples/demo/Controls/Sections/UserSection.xaml

@@ -40,7 +40,7 @@
           <Label
             Grid.Column="1"
             x:Name="ExternalIdLabel"
-            Text="–"
+            Text="—"
             Style="{StaticResource BodySmallStyle}"
             FontFamily="DroidSansMono"
             VerticalOptions="Center"

examples/demo/ViewModels/AppViewModel.cs

@@ -29,7 +29,7 @@ public partial class AppViewModel : ObservableObject
     private string _userStatus = "Anonymous";
 
     [ObservableProperty]
-    private string _externalIdDisplay = "–";
+    private string _externalIdDisplay = "—";
 
     [ObservableProperty]
     private bool _isLoggedIn;
@@ -39,7 +39,7 @@ public partial class AppViewModel : ObservableObject
 
     // Push section
     [ObservableProperty]
-    private string _pushSubscriptionId = "";
+    private string _pushSubscriptionId = "—";
 
     [ObservableProperty]
     private bool _isPushEnabled;
@@ -121,8 +121,8 @@ public async Task LoadInitialStateAsync()
         var extId = OneSignal.User.ExternalId ?? _prefs.ExternalUserId;
         UpdateUserStatus(extId);
 
-        var rawPushId = OneSignal.User.PushSubscription.Id ?? "";
-        PushSubscriptionId = MaskValue(rawPushId);
+        var rawPushId = OneSignal.User.PushSubscription.Id;
+        PushSubscriptionId = MaskValue(string.IsNullOrEmpty(rawPushId) ? "—" : rawPushId);
         IsPushEnabled = OneSignal.User.PushSubscription.OptedIn;
 
         var onesignalId = OneSignal.User.OneSignalId;
@@ -146,7 +146,7 @@ private void UpdateUserStatus(string? externalId)
         var loggedIn = !string.IsNullOrEmpty(externalId);
         LoginButtonText = loggedIn ? "SWITCH USER" : "LOGIN USER";
         UserStatus = loggedIn ? "Logged In" : "Anonymous";
-        ExternalIdDisplay = loggedIn ? externalId! : "–";
+        ExternalIdDisplay = loggedIn ? externalId! : "—";
         IsLoggedIn = loggedIn;
     }
 
@@ -598,8 +598,8 @@ private void OnPushSubscriptionChanged(object? sender, PushSubscriptionChangedEv
     {
         MainThread.BeginInvokeOnMainThread(() =>
         {
-            var rawPushId = OneSignal.User.PushSubscription.Id ?? "";
-            PushSubscriptionId = MaskValue(rawPushId);
+            var rawPushId = OneSignal.User.PushSubscription.Id;
+            PushSubscriptionId = MaskValue(string.IsNullOrEmpty(rawPushId) ? "—" : rawPushId);
             IsPushEnabled = OneSignal.User.PushSubscription.OptedIn;
             Debug.WriteLine($"Push subscription changed: id={rawPushId}, optedIn={IsPushEnabled}");
         });