Changed Object browser logic to work with websockets (#2419)

fixes https://github.com/minio/console/issues/943

## What does this do?

This allows us to start streaming results to the list instead of waiting
to retrieve all the objects list before sending it to the client

Included a couple of fixes:

- Removed metadata for deleted items
- Fixed multiple metadata requests
- Fixed height grow for parent wrapper
- Fixed object reload after restore version


Signed-off-by: Benjamin Perez <benjamin@bexsoft.net>

restapi/user_objects.go

@@ -225,6 +225,7 @@ func listBucketObjects(ctx context.Context, client MinioClient, bucketName strin
 		Recursive:    recursive,
 		WithVersions: withVersions,
 		WithMetadata: withMetadata,
+		MaxKeys:      100,
 	}
 	if withMetadata {
 		opts.MaxKeys = 1