Make `move-node-to-workspace next|prev` to accept stdin similar `workspace next|prev`

[nikitabobko]

Similar to how one can do:

echo "1 2 3" | aerospace workspace next

it would make sense to support stdin consumption for move-node-to-workspace next|prev

Use case: #842

[nikitabobko]

BTW there is "a bug" that this works:

echo -e "1\n2\n3" | aerospace workspace next

but this doesn't:

echo 1 2 3 | aerospace workspace next

It would be nice to fix "the bug" in scope of this issue