Fix plugin manager crash when opening it

src/DesktopMagic/Plugins/PluginManager.xaml.cs

@@ -48,8 +48,6 @@ public partial class PluginManager : Window
 
     public PluginManager()
     {
-        InitializeComponent();
-
         Resources.MergedDictionaries.Add(App.LanguageDictionary);
 
         string? modIoAccessToken = MainWindowDataContext.GetSettings().ModIoAccessToken;
@@ -64,6 +62,8 @@ public partial class PluginManager : Window
             pluginManagerDataContext.IsAuthenticated = true;
         }
 
+        InitializeComponent();
+
         DataContext = pluginManagerDataContext;
         searchTimer.Tick += async (sender, e) =>
         {