Deaccession Modal: fix form behavior and formatting

[ekraffmiller]

What steps does it take to reproduce the issue?
There is not enough border in the modal. This can be fixed by rendering the form group as a column, for example
<Form.Group as={Col}>

If a dataset has a previous dataset version has been deaccessioned, it should not appear in the list of versions that can be deaccessioned.

When the deaccession modal is submitted, there is no loading indicator and button is not disabled while submitting. Instead, it should work like this example: https://github.com/IQSS/dataverse-frontend/blob/281cad0885b8ffcd68e95126c346ab0ef3[…]onfirm-delete-collection-modal/ConfirmDeleteCollectionModal.tsx

• When does this issue occur?
  Deaccession a Dataset after a previous dataset version has been Deaccessioned

• Which page(s) does it occur on?
  Deaccession Modal

• What happens?
  All versions are listed, rather than only non-deaccessioned versions. If there is only one non-deaccessioned version, then the list should not appear at all

When the form is submitted the submit button is not disabled