GRN2-253: Added the ability to share rooms across multiple users (#912)

* Added ability to share rooms with other users

* Fixed testcases

app/models/setting.rb

@@ -43,6 +43,8 @@ class Setting < ApplicationRecord
         false
       when "Room Limit"
         Rails.configuration.number_of_rooms_default
+      when "Shared Access"
+        Rails.configuration.shared_access_default
       end
     end
   end