Issue : Currently when a bundle is transferred from one account to another using Kaui, the screen does not give any option to select the transfer policy and uses End_Of_Term as the default value. On the other hand, the same operation when performed via the API gives the option to select out of Start_Of_Term, Immediate OR End_Od_Term policy just like at the time of cancelling.

Expected behavior : The behavior and options should be consistent between the admin ui and the API ( https://killbill.github.io/slate/#bundle-transfer-a-bundle-to-another-account ).