public async Task <DeviceIcon> AddIcon(string fileName, Stream fileStream)
{
await CreateAccessPolicyIfNotExist();
string name = Guid.NewGuid().ToString();
string extension = Path.GetExtension(fileName);
string contentType = MimeMapping.GetMimeMapping(string.IsNullOrEmpty(extension) ? "image/png" : extension);
var uploadedBlob = await _blobStorageClient.UploadFromStreamAsync($"{_uploadedFolder}/{name}",
contentType,
fileStream,
AccessCondition.GenerateEmptyCondition(),
null,
null);
var appliedBlob = await _blobStorageClient.MoveBlob(uploadedBlob.Name, $"{_appliedFolder}/{name}");
return(new DeviceIcon(Path.GetFileName(appliedBlob.Name), appliedBlob));
}