add co-author json

app/controllers/desktop/co_authors_controller.rb

@@ -62,4 +62,18 @@ class Desktop::CoAuthorsController < ApplicationController
       format.json { head :no_content }
     end
   end
+
+  def get_co_authors_json
+    @co_authors = CoAuthor.where(name_id: current_user.id)
+    data = Array.new
+
+    @co_authors.each do |co_author|
+      data << {
+        author: co_author.co_author,
+        email: co_author.email,
+        type: co_author.type
+      }
+    end
+    render json: JSON.pretty_generate(data)
+  end
 end