[feat:] pdf export options (working)

ExportOptions.axaml.cs

@@ -0,0 +1,27 @@
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Interactivity;
+using Avalonia.Markup.Xaml;
+using PLG_Exam.ViewModels;
+
+
+namespace PLG_Exam;
+
+public partial class ExportOptions : Window
+{
+    public ExportOptions()
+    {
+        InitializeComponent();
+        DataContext = new ExportOptionsViewModel();
+    }
+
+    private async void OnSubmitClick(object sender, RoutedEventArgs e)
+    {
+        var viewModel = (ExportOptionsViewModel)DataContext;
+        MainWindow._instance.ExportToPdf(viewModel.CorrectionMargin, viewModel.LineSpacing, viewModel.HasCorrectionLines, viewModel.TextPosition);
+        this.Close();
+    }
+
+    
+
+}