Traductions manquantes (suite) de library/datetime.po (#1280)

* Traductions manquantes (suite) de library/datetime.po

* Correction redondance

* Changement inverse <-> réciproque

* Quelques corrections

* Apply suggestions from code review

Co-authored-by: Mathieu Dupuy <[email protected]>

* Wrapping

* Traduction capture <-> regroupe

Co-authored-by: Mathieu Dupuy <[email protected]>

Author: alkimya