[PD-830] Removed accordion styling from job form and added cards to locations

* Used fieldsets + legends instead of accordion styling
* Replaed flat list of locations with product cards
* Relocated list of locations to below location form
* reduced width of location list and aligned with form
* used a hyperlink instead of btn style for the add/remove button 
* added strike-through decoration for removed locations

I presume @fezick  will want to review this before it goes out.