Ensure that categories and joatu models include metrics viewable

Author: rsmithlal

app/models/better_together/category.rb

@@ -4,6 +4,7 @@ module BetterTogether
   class Category < ApplicationRecord # rubocop:todo Style/Documentation
     include Attachments::Images
     include Identifier
+    include Metrics::Viewable
     include Positioned
     include Protected
     include Translatable

app/models/better_together/joatu/agreement.rb

@@ -5,6 +5,7 @@ module Joatu
     # Agreement connects an offer and request and tracks value exchange
     class Agreement < ApplicationRecord
       include FriendlySlug
+      include Metrics::Viewable
 
       STATUS_VALUES = {
         pending: 'pending',

app/models/better_together/joatu/offer.rb

@@ -4,8 +4,9 @@ module BetterTogether
   module Joatu
     # Offer represents a service or item someone is willing to provide
     class Offer < ApplicationRecord
-      include Exchange
       include Creatable
+      include Exchange
+      include Metrics::Viewable
 
       has_many :requests, class_name: 'BetterTogether::Joatu::Request', through: :agreements
 

app/models/better_together/joatu/request.rb

@@ -4,8 +4,9 @@ module BetterTogether
   module Joatu
     # Request represents a need someone wants fulfilled
     class Request < ApplicationRecord
-      include Exchange
       include Creatable
+      include Exchange
+      include Metrics::Viewable
 
       has_many :offers, class_name: 'BetterTogether::Joatu::Offer', through: :agreements