Display whitelist information in about/more

This also limits the number of federated instances to the actual whitelist count.

app/presenters/instance_presenter.rb

@@ -25,8 +25,16 @@ class InstancePresenter
     Rails.cache.fetch('local_status_count') { Account.local.sum(:statuses_count) }
   end
 
+  def whitelist
+    Rails.cache.fetch('whitelist') { DomainWhitelist.all }
+  end
+
   def domain_count
-    Rails.cache.fetch('distinct_domain_count') { Account.distinct.count(:domain) }
+    if DomainWhitelist.enabled? 
+      whitelist.length
+    else
+      Rails.cache.fetch('distinct_domain_count') { Account.distinct.count(:domain) }
+    end
   end
 
   def version_number

app/views/about/show.html.haml

@@ -62,7 +62,7 @@
                   %span= t 'about.status_count_after'
               .row__mascot
                 .landing-page__mascot
-                  = image_tag asset_pack_path('elephant_ui_plane.svg')
+                  = image_tag asset_pack_path('awoospacefrontart-small.png')
 
       - else
         .column-2.non-preview
@@ -94,7 +94,7 @@
                   %span= t 'about.status_count_after'
               .row__mascot
                 .landing-page__mascot
-                  = image_tag asset_pack_path('elephant_ui_plane.svg')
+                  = image_tag asset_pack_path('awoospacefrontart-small.png')
 
       - if Setting.timeline_preview
         .column-3
@@ -142,4 +142,4 @@
               = link_to t('about.source_code'), @instance_presenter.source_url
               = " (#{@instance_presenter.version_number})"
 
-#modal-container
+#modal-container