Subquery block missing support for drag and drop

[ellm]

Description of the bug

While the Move Post button is available within a Subquery block, it is not possible to move the post within a Subquery only to positions in the Query block.

Steps To Reproduce

1. Create a new Query block with a nested Subquery block.
2. Pin a post within the Subquery block.
3. Attempt to Move Post to a new position. Only positions in the Query block are available.

Additional Information

Example code for creating Query with Subquery

<!-- wp:wp-curate/query {"postTypes":["post"],"posts":[null,null,null,null,null]} -->
<div class="wp-block-wp-curate-query"><!-- wp:post-template -->
<!-- wp:wp-curate/post -->
<div class="wp-block-wp-curate-post"><!-- wp:post-title {"isLink":true} /-->

<!-- wp:wp-curate/subquery {"numberOfPosts":2,"postTypes":[{"name":"Post","slug":"post"}],"posts":[null,null],"terms":{"category":[],"post_tag":[]},"uniqueId":"87552371-c7f9-4175-9105-d5ab61240864"} -->
<div class="wp-block-wp-curate-subquery"><!-- wp:post-template -->
<!-- wp:wp-curate/post -->
<div class="wp-block-wp-curate-post"><!-- wp:post-title {"level":3,"isLink":true} /--></div>
<!-- /wp:wp-curate/post -->
<!-- /wp:post-template --></div>
<!-- /wp:wp-curate/subquery --></div>
<!-- /wp:wp-curate/post -->
<!-- /wp:post-template --></div>
<!-- /wp:wp-curate/query -->