public async Task <NewAvatarDto> UpdateAvatarAsync(int eventId, IFormFile file)
{
var path = $"wwwroot/EventAvatar/{eventId}/{file.FileName}";
await _imageSaver
.SaveWithSpecifiedName(file, path);
var newAvatar = new NewAvatarDto {
Avatar = path
};
_repository.Event.UpdateById(eventId, newAvatar);
await _repository.SaveAsync();
return(newAvatar);
}