Revert "SITE: Categorias y carrusel inferior con datos"

This reverts commit 5fc92693207a9031c95db94e74a943f0f68c0fd9.
Añadido services
Merge branch 'dev' of https://github.com/foxnet-es/book.selling into dev

Conflicts:
	modules/site/categories/index.html
	services/site/modules/books/index.html
	services/site/modules/books/index.js