Add Export Metadata Dropdown

[MellyGray]

Overview of the Feature Request

The goal is to add the Metadata Export Dropdown to the metadata tab of Dataset Page view mode.

Mockup of the requested element

What inspired the request?

• #63

What existing behavior do you want changed?

None

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

• Add the Metadata Export Dropdown to the metadata tab of Dataset Page view mode

Any open or closed issues related to this feature request?

• #63
• #182