v1.14 — Reset window height on Back button navigation

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

MainWindow.xaml.cs

@@ -141,6 +141,9 @@ namespace InstaSoftOfficeTool
 
         private void BtnBack_Click(object sender, RoutedEventArgs e)
         {
+            // Reset window height in case a page enlarged it
+            Height = 550;
+
             if (_currentPageIndex > 0 && _currentFlow == "install")
             {
                 _currentPageIndex--;