Add DTI 2020 link to item pages

Someone requested this in Discord, and I figured why not! I'm still
planning to move stuff away from Impress 2020 over time, I just figure
may as well have them more linked while this is still The Reality

app/helpers/items_helper.rb

@@ -1,3 +1,5 @@
+require "addressable/template"
+
 module ItemsHelper
   JNItemsURLFormat = 'https://items.jellyneo.net/search/?name=%s&name_type=3'
   
@@ -76,6 +78,13 @@ module ItemsHelper
     sprintf(JNItemsURLFormat, CGI::escape(item.name))
   end
 
+  IMPRESS_2020_ITEM_URL_TEMPLATE = Addressable::Template.new(
+    "#{Rails.configuration.impress_2020_origin}/items/{id}"
+  )
+  def impress_2020_url_for(item)
+    IMPRESS_2020_ITEM_URL_TEMPLATE.expand(id: item.id).to_s
+  end
+  
   def shop_wizard_url_for(item)
     "https://www.neopets.com/market.phtml?type=wizard&string=#{CGI::escape item.name}"
   end

app/views/items/_item_header.html.haml

@@ -26,6 +26,7 @@
         }= time_with_only_month_if_old item.created_at
 
       = link_to t('items.show.resources.jn_items'), jn_items_url_for(item)
+      = link_to t('items.show.resources.impress_2020'), impress_2020_url_for(item)
       - if item.nc_trade_value
         = link_to t('items.show.resources.owls', value: item.nc_trade_value.value_text),
           "https://www.neopets.com/~owls",

config/locales/en.yml

@@ -309,6 +309,7 @@ en:
           description: Only obtainable via paintbrush
       resources:
         jn_items: JN Items
+        impress_2020: DTI 2020
         owls: "Owls: %{value}"
         shop_wizard: Shop Wizard
         super_shop_wizard: Super Wizard