[3.8] Fix #878 Add delete from basket button in detailled view

Sorry, I've change code style in both JS file, but it was unsustainable ... so in

**jquery.Workzone.js** changes occurs from https://github.com/nlegoff/Phraseanet/blob/9be2194485ea3dbde9f999fa17aec7112da80084/www/skins/prod/jquery.WorkZone.js#L133-L154 & https://github.com/nlegoff/Phraseanet/blob/9be2194485ea3dbde9f999fa17aec7112da80084/www/skins/prod/jquery.WorkZone.js#L553
**jquery.Prod.js** changes occurs from https://github.com/nlegoff/Phraseanet/blob/9be2194485ea3dbde9f999fa17aec7112da80084/www/skins/prod/jquery.Prod.js#L3-L4