TT-1766: Fix merge conflict by including ViewableIdpPartialController
TT-1766: Fix merge conflict by including ViewableIdpPartialController

Authors: 30e32bebb47edfdde2fee768480b7a9867c83640@rachelthecodesmith

alphagov/verify-frontend,alphagov/verify-frontend,alphagov/verify-frontend,alphagov/verify-frontend