Improve the UX/UI of the Dataset Export page

Problem definition

Current page should be more intuitive and clear for the user:

• quick selection of the data set
• Clear distinction of the associated fields
• Why The [Get Statistics] button is not associated to the Statistics Card?
• Why the Statistics Card has such a big height, when is empty?
  It might be useful to see the Data Export without scrolling, if no info is showed above..
• Consider a more complete feedback on the Dataset Exported?

Screenshot of the current solution attached.
See more in Prodpad: https://app.prodpad.com/ideas/907/canvas

Possible Solutions
Dataset Export complete userflow and iterarion
https://nuxeo.invisionapp.com/freehand/document/K6UgxXm7J

Conclusions
It should be separated into a basic page and an advanced with more technical and further options.
Progress bar ideally should be graphic and track the done/errors/missing documents.
Two columns layout makes a better space management and info distribution, on smaller screens, basic Y hierarchy should be taken under consideration.
Full userflow screenshots attached and available through invision link.

Navigate between screens: https://nuxeo.invisionapp.com/d/main#/console/17687977/366713616/preview

UI details/CSS inspect: https://nuxeo.invisionapp.com/d/main#/console/17687977/366713616/inspect