Customizable "order by" feature

[thigcampos]

Goal

The goal is to deliver a feature to support a customizable order_by for each section of the content folder. Currently, we only order by title, which is not really the best scenario.

[thigcampos]

@ivansantiagojr how about we include "date" as a required metadata field of a section? I'm not really into adding a lot of required fields, but it seems reasonable to do that. Otherwise, we could include a verification in our backend and ditch the obligation of the date field.