Style recently merged code

We enabled more Rubocop checks and code that was merged around the same
time, didn't comply with the new checks.

app/controllers/spree/admin/search_controller_decorator.rb

@@ -10,7 +10,7 @@ Spree::Admin::SearchController.class_eval do
         :ship_address_lastname_start => params[:q],
         :bill_address_firstname_start => params[:q],
         :bill_address_lastname_start => params[:q]
-        }).result.limit(10)
+      }).result.limit(10)
     end
 
     render json: @users, each_serializer: Api::Admin::UserSerializer

spec/features/consumer/shopping/embedded_shopfronts_spec.rb

@@ -107,7 +107,7 @@ feature "Using embedded shopfront functionality", js: true do
   end
 
   private
-  
+
   def login_with_modal
     expect(page).to have_selector 'div.login-modal', visible: true