[#5] MemberDataSheet: Add generating a member data sheet

Elwig/Windows/MemberAdminWindow.xaml.cs

@@ -337,6 +337,20 @@ namespace Elwig.Windows {
             await PrintLetterheads(2);
         }
 
+        private async void Menu_Print_Memberdata_Click(object sender, RoutedEventArgs evt) {
+            if (MemberList.SelectedItem is not Member m)
+                return;
+            Mouse.OverrideCursor = Cursors.AppStarting;
+            using var doc = new MemberDataSheet(m, Context);
+            await doc.Generate();
+            Mouse.OverrideCursor = null;
+            if (App.Config.Debug) {
+                doc.Show();
+            } else {
+                await doc.Print();
+            }
+        }
+
         private void FocusSearchInput(object sender, RoutedEventArgs evt) {
             if (!IsEditing && !IsCreating) {
                 SearchInput.Focus();