Add all downloading options to Dataset page in view mode

[GPortas]

Overview of the Feature Request

The goal is to add all downloading options to Dataset page in view mode.

This include: citation, files, and metadata (See mockups).

Mockup of the requested element

Process action items

Find out more about the action items in the process definition

• [x] #182
• [x] #191
• [x] #185
• [ ] #186
• [x] #187
• [x] #188
• [x] #189

What inspired the request?

• UI discussion on Dataset page initial work

What existing behavior do you want changed?

N/A

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

• Add Dataset downloading options to Dataset page

Any open or closed issues related to this feature request?

Not yet

[pdurbin]

Please note that for the "Cite Dataset" dropdown we need to create an API endpoint for the various formats (Endnote XML, RIS, and BibTeX):

• https://github.com/IQSS/dataverse/issues/3140

I'm not sure why I gave up on this, but long ago (2016!) I did start hacking a bit on adding this citation API: https://github.com/IQSS/dataverse/commit/c433395f4a1756ee14e669b91820047edc4db1ad