* Allow prefill pays type de champs
* Avoid conditional prefil params for pays champ
* Clean pays data with batch update
* Fix bug and add test batch update pays value
* Improve performance batch_update_pays
* Fix associated country code problem
* Fix after party task name
* Format country name if needed in batch update
* feat(dossier): prefill drop down list champ
* decorate the types de champ to avoid if / else
In order to avoid doing if this a drop down ? / else at several places,
we decorate the types de champ and let the decorator give the possible
and example values.
* show all possible values when there are too many
* allow to prefill 'other' option
* review: remove duplicate
* review: refactor for readability
* validate that value is in options
* review: exclude disabled options
* store prefill params in session
Instead of using query params on /dossier/new, we assume the user comes
from /commencer/:path, which is the new prefill link.
There, we store the prefill params in session, and use them to prefill
the dossier when creating it, in /dossiers/new.
* spec: cover the case
* review: serialize with json instead of yaml
* review: rename method
* review: store only query params
* review: comment why we dont override already stored params
