Send section IDs to reorder
Send section IDs to reorder

So that the reordering is saved, send it to the server on submit.

ministryofjustice/specialist-publisher,alphagov/specialist-publisher-rebuild,alphagov/specialist-publisher,ministryofjustice/specialist-publisher,alphagov/specialist-publisher,alphagov/specialist-publisher-rebuild,ministryofjustice/specialist-publisher,alphagov/manuals-publisher,alphagov/manuals-publisher,alphagov/specialist-publisher-rebuild,ministryofjustice/specialist-publisher,alphagov/specialist-publisher-rebuild,alphagov/manuals-publisher,alphagov/specialist-publisher