message: Fix to ignore app.lnk file IOException on delete
diff: var shortcutName = Path.ChangeExtension(AppEnvironment.ApplicationMainWindowTitle, "lnk");
  var shortcutPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData, Environment.SpecialFolderOption.DoNotVerify), @"Microsoft\Windows\Start Menu\Programs", shortcutName);
  if (File.Exists(shortcutPath))
  + {
  + try
  + {
  File.Delete(shortcutPath);
  + }
  + catch (IOException)
  + {
  + // ignore "The process cannot access the file '..\Bravo for Power BI.lnk' because it is being used by another process."
  + }
  + }
  CheckForUpdate();
  }
  