show campaign on trade lists

Turns out ~22% of our users initially land on a trade list.
We like to keep the campaign off the pages where space is at a
premium, so we try to whitelist it to major landing pages in order
to avoid accidentally creating a bad experience on some page :)

app/assets/stylesheets/closet_hangers/_index.sass

@@ -3,6 +3,7 @@
 @import "../partials/secondary_nav"
 
 body.closet_hangers-index
+  +campaign-progress
   +secondary-nav
 
   #title
@@ -355,11 +356,11 @@ body.closet_hangers-index
             display: block
 
       #toggle-help
-        display: inline
+        display: inline-block
 
   &.js
     #toggle-compare
-      display: inline
+      display: inline-block
 
     #closet-hangers.comparing
       .object

app/controllers/closet_hangers_controller.rb

@@ -65,6 +65,8 @@ class ClosetHangersController < ApplicationController
     if @public_perspective && user_signed_in?
       current_user.assign_closeted_to_items!(items)
     end
+
+    @campaign = Campaign.current
   end
 
   def petpage

app/views/closet_hangers/index.html.haml

@@ -1,3 +1,5 @@
+- content_for :before_title, advertise_campaign_progress(@campaign)
+
 - unless public_perspective?
   - title t('.title_for.you')
   - add_body_class 'current-user'