Fix old version settings not applying on first launch after upgrade

Author: CodingOctocat

IPConfig/App.xaml.cs

@@ -17,6 +17,7 @@
 using IPConfig.Helpers;
 using IPConfig.Languages;
 using IPConfig.Models;
+using IPConfig.Properties;
 using IPConfig.ViewModels;
 using IPConfig.Views;
 
@@ -115,6 +116,13 @@ protected override void OnStartup(StartupEventArgs e)
             DefaultValue = Current.FindResource(typeof(Window))
         });
 
+        if (Settings.Default.UpgradeRequired)
+        {
+            Settings.Default.Upgrade();
+            Settings.Default.UpgradeRequired = false;
+            Settings.Default.Save();
+        }
+
         var mainWindow = Services.GetRequiredService<MainWindow>();
         mainWindow.Show();
     }

IPConfig/ViewModels/MainViewModel.cs

@@ -146,13 +146,6 @@ private void Loaded()
     {
         var cultures = LangSource.GetAvailableCultures().OrderBy(x => x.Name);
         Languages = new(cultures);
-
-        if (Settings.Default.UpgradeRequired)
-        {
-            Settings.Default.Upgrade();
-            Settings.Default.UpgradeRequired = false;
-            Settings.Default.Save();
-        }
     }
 
     [RelayCommand]