public async Task <IActionResult> Edit(Guid tLevelId, EditTLevel.Command command) =>
await _mediator.SendAndMapResponse(
command,
response => response.Match <IActionResult>(
errors => this.ViewFromErrors("EditTLevel", errors),
success => RedirectToAction(nameof(CheckAndPublish), new { tLevelId })
.WithJourneyInstanceUniqueKey(_journeyInstance)));
