Front end/checkbox styling

- Updated reveal plugin to set the label class after page reload
- Updated moj.select-option not to reset check boxes when new one is selected
- Updated /apply/claim-type/ to implement changes

- Wrapped the gds_check_boxes with extra markup so moj.selected-option.js is bound correctly
- Applied the necessary classes where gds_check_boxes are used
- Added logic to the moj.selected-option.js to apply the class when the page reloads