[Storage] [DataMovement] Using Entra ID with Share File will set the ShareFileIntent for FromDirectory and FromFile (Azure#47010)

* On default using Entra ID with Share File will set the ShareFileIntent header

* Extra whitespace

Author: amnguye

sdk/storage/Azure.Storage.DataMovement.Files.Shares/src/ShareFilesStorageResourceProvider.cs

@@ -8,6 +8,7 @@
 using System.Threading.Tasks;
 using Azure.Core;
 using Azure.Storage.Files.Shares;
+using Azure.Storage.Files.Shares.Models;
 
 namespace Azure.Storage.DataMovement.Files.Shares
 {
@@ -300,7 +301,10 @@ public StorageResource FromDirectory(Uri directoryUri, ShareFileStorageResourceO
             {
                 CredentialType.None => new ShareDirectoryClient(directoryUri),
                 CredentialType.SharedKey => new ShareDirectoryClient(directoryUri, _getStorageSharedKeyCredential(directoryUri, false)),
-                CredentialType.Token => new ShareDirectoryClient(directoryUri, _getTokenCredential(directoryUri, false)),
+                CredentialType.Token => new ShareDirectoryClient(
+                    directoryUri,
+                    _getTokenCredential(directoryUri, false),
+                    new ShareClientOptions { ShareTokenIntent = ShareTokenIntent.Backup }),
                 CredentialType.Sas => new ShareDirectoryClient(directoryUri, _getAzureSasCredential(directoryUri, false)),
                 _ => throw BadCredentialTypeException(_credentialType),
             };
@@ -327,7 +331,10 @@ public StorageResource FromFile(
             {
                 CredentialType.None => new ShareFileClient(fileUri),
                 CredentialType.SharedKey => new ShareFileClient(fileUri, _getStorageSharedKeyCredential(fileUri, false)),
-                CredentialType.Token => new ShareFileClient(fileUri, _getTokenCredential(fileUri, false)),
+                CredentialType.Token => new ShareFileClient(
+                    fileUri,
+                    _getTokenCredential(fileUri, false),
+                    new ShareClientOptions { ShareTokenIntent = ShareTokenIntent.Backup }),
                 CredentialType.Sas => new ShareFileClient(fileUri, _getAzureSasCredential(fileUri, false)),
                 _ => throw BadCredentialTypeException(_credentialType),
             };