move controller into users folder

spec/features/description_page/upload_piece_justificative_spec.rb

@@ -3,7 +3,7 @@ require 'spec_helper'
 feature 'user is on description page' do
   let(:dossier) { create(:dossier, :with_entreprise, :with_procedure) }
   before do
-    visit dossier_description_path dossier
+    visit users_dossier_description_path dossier
   end
   it { expect(page).to have_css('#description_page') }