Extras as Category#81

Add “extras” as a category or sub category section that can have mulltiple extras that can then be assigned to one or many services,

Many extras might be a product that goes with many services so it’s a pain having to recreate the extra each time. Extra needs to have a bit of a description too.

Would be great to manage extras the same way as Services, so they are assigned to the relevant services via a multiple-choice menus, as well as them having an image and descriptive text.