Save as eml, translation updates

Wino.Mail.WinUI/Views/Mail/ComposePage.xaml.cs

@@ -59,6 +59,17 @@ public sealed partial class ComposePage : ComposePageAbstract,
     public ComposePage()
     {
         InitializeComponent();
+        ViewModel.SaveHTMLasPDFFunc = async path =>
+        {
+            var webView = GetWebView();
+
+            if (webView?.CoreWebView2 == null)
+            {
+                return false;
+            }
+
+            return await webView.CoreWebView2.PrintToPdfAsync(path, null);
+        };
         ViewModel.CloseRequested += ViewModel_CloseRequested;
     }
 
@@ -495,6 +506,7 @@ public sealed partial class ComposePage : ComposePageAbstract,
         FocusManager.GotFocus -= GlobalFocusManagerGotFocus;
         ComposeAiActionsPanel.CancelPendingOperation();
         await ViewModel.UpdateMimeChangesAsync();
+        ViewModel.SaveHTMLasPDFFunc = null;
         ViewModel.RenderHtmlBodyAsyncFunc = null;
 
         DisposeDisposables();
@@ -565,6 +577,16 @@ public sealed partial class ComposePage : ComposePageAbstract,
         }
     }
 
+    private async void ExportPdf_Click(object sender, RoutedEventArgs e)
+    {
+        await ViewModel.ExportAsPdfAsync();
+    }
+
+    private async void ExportEml_Click(object sender, RoutedEventArgs e)
+    {
+        await ViewModel.ExportAsEmlAsync();
+    }
+
     protected override void RegisterRecipients()
     {
         base.RegisterRecipients();