Replace Task.Delay(100) with Task.Yield() in DialogManager.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

DiscordChatExporter.Gui/Framework/DialogManager.cs

@@ -38,9 +38,9 @@ public class DialogManager : IDisposable
                 }
             );
 
-            // Small delay to allow DialogHost to fully reset its state
+            // Yield to allow DialogHost to reset its state
             // before another dialog can be shown
-            await Task.Delay(100);
+            await Task.Yield();
 
             return dialog.DialogResult;
         }