Summary:
Created as standard layout that can be used for both the import and export form
Standardized components used, so that we work towards a Design Framework that is consistent. Took inspiration from some existing plugins.
Also fixed weird sidebar transparency.
Reviewed By: passy
Differential Revision: D18504078
fbshipit-source-id: 7649abf7aa3eba8ba635337a41274bba93738e81
