Improve formatting of additional/custom fields in ListSubscribers table
Improve formatting of additional/custom fields in ListSubscribers table

Part of issue #13

karuppiah7890/Mail-for-Good,zhakkarn/Mail-for-Good,zhakkarn/Mail-for-Good,zhakkarn/Mail-for-Good,karuppiah7890/Mail-for-Good,karuppiah7890/Mail-for-Good