Feature: order in multiple printing

When printing a list of documents, one has no control on the ordering. Maybe the "résumé" section could be editable via drag and drop (and mask?) to select the order of printing ?

https://www.camptocamp.org/routes/print?w=132273

Start with the linked printing page and inspect the résumé section described in the issue. The work is done when users can choose and reorder the documents before printing, with the intended masking behavior clarified.

Written by the indexing model from the issue text.