Feature: Send Newsletter

Fixes from !31 (closed) - Issues pushing local updates so creating new MR

Ability to send

• Email about 1 action to a list of users
• Newsletter recapping online actions to a list of users

⚠ Need to exclude commits linked to instance personnalization

Evolutions

• Command launch: Ability to choose template we are sending

Exemple modèle partage d'une action

Exemple modèle partage des actions en ligne: