Implement the deaccession reason block

[GPortas]

Overview of the Feature Request

Add the "Deaccession Reason" block below the citation block when the Dataset is deaccessioned.

What kind of user is the feature intended for?

All users

What inspired the request?

• #82
• Discussion with the frontend team

What existing behaviour do you want to change?

Add the "Deaccession Reason" block.

Any brand new behavior do you want to add to Dataverse?

None

Any open or closed issues related to this feature request?

• #82