Added link/PreviewCard search to search

• Added:
- link/PreviewCard search to search

app/serializers/rest/v2/search_serializer.rb

@@ -5,4 +5,5 @@ class REST::V2::SearchSerializer < ActiveModel::Serializer
   has_many :statuses, serializer: REST::StatusSerializer
   has_many :hashtags, serializer: REST::TagSerializer
   has_many :groups, serializer: REST::GroupSerializer
+  has_many :links, serializer: REST::PreviewCardSerializer
 end