Show (i) icon on lightbox to show description and copyright/references

[wynnset]

The (i) icon would go beside the other buttons on the top left. When clicked, we should show the description and the copyright/references in a similar way as the sidebar. (Optional: "flip" the whole lightbox to make a cool animation and show this "on the back of" the lightbox)

Note: We are going to still keep this information in the sidebar as well