Add info button to the Planet-NICFI Satellite widget

[lhilarides]

To properly reference Planet-NICFI program, we need to add some information and a link. I suggest to do this by adding an info button to the widget, which could then contain the following text:

Overview
Through Norway’s International Climate & Forests Initiative (NICFI), users can now access Planet’s high-resolution, analysis-ready mosaics of the world’s tropics in order to help reduce and reverse the loss of tropical forests, combat climate change, conserve biodiversity, and facilitate sustainable development for non commercial uses.

Date of content
2015 - present

License
Planet-NICFI Participant License Agreement

[klongleywood]

@mluena and fyi @lhilarides I don't see this implemented in the new staging site or production - maybe I'm missing something?