Selection icon only available on browser view

[agbeltran]

Description:
The selection icon is only available on the browser view. Other ways to get to the selection is via the Download feature (but this is not necessarily clear for the user).

I'd like to revise this design and consider if we should make available the selection icon (the cart) at the top of the page.

views from @mattjSTFC will be appreciated

Acceptance criteria:

• Revised design making clear how to access the selection