Fixes T351

Summary:
* abstracts `card` for reusability
	* reorganizes directories
* styles custom form wizard
	* config
	* settings

* Fixes T351

Test Plan: * check styles and responsiveness for custom form wizard

Reviewers: rjmackay, shadowhand

Reviewed By: shadowhand

Subscribers: dkobia

Maniphest Tasks: T351

Differential Revision: https://phabricator.ushahidi.com/D179