v79

What's Changed

• notifies last signee on convention fully signed by @bbohec in #247
• check unicity of emails before storing notification in repository by @JeromeBu in #260
• Fix / Select agency id in ConventionForm by @enguerranws in #262
• add milo-paris as Convention external consumer by @JeromeBu in #261

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• Ajout d’une route dédié à la mission locale de Paris pour les ajouts de convention ([Issue 251](https://github.com/orgs/gip-inclusion/projects/10/views/2?pane=issue&itemId=29981669)). [Exemple de page pour la recette](https://staging.immersion-facile.beta.gouv.fr/demande-immersion/milo-paris?agencyDepartment=75&agencyId=aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa&email=john.doe%40mail.com&firstName=John&lastName=Doe&phone=060000000&isRqth=false&birthdate=2000-10-10&siret=34493368400021&businessName=FRANCE%20MERGUEZ%20DISTRIBUTION&businessAdvantages=acc%C3%A8s%20au%20self&etFirstName=Jaime&etLastName=Saussices&etJob=Chef&etPhone=0620202020&etEmail=jaime.saucisse%40merguez.com&erFirstName=Jaime&erLastName=Saussices&erPhone=0620202020&erEmail=jaime.saucisse%40merguez.com&immersionAddress=ZI%20VILLETANEUSE%206%20RUE%20RAYMOND%20BROSSE%2093430%20VILLETANEUSE&immersionObjective=Confirmer%20un%20projet%20professionnel&immersionActivities=Charcuter&immersionSkills=le%20talent&sanitaryPreventionDescription=fourniture%20de%20gel%20hydro&workConditions=Tr%C3%A8s%20bonne%20conditions&sanitaryPrevention=true&individualProtection=false&dateStart=2023-06-10&dateEnd=2023-06-17&immersionAppellation=%7B%22romeCode%22%3A%22D1103%22%2C%22romeLabel%22%3A%22Charcuterie%20-%20traiteur%22%2C%22appellationCode%22%3A%2211741%22%2C%22appellationLabel%22%3A%22Charcutier%20%2F%20Charcuti%C3%A8re%22%7D). Et rédaction de la [documentation des paramètres d’url](https://pad.incubateur.net/BYrTd10MQf-JEop7KGo45w?view).
• Fix: unicité des emails, cette fois au niveau de la sauvegarde des notifications en base, pour régler le problème partout en même temps.
• Envoi d’un mail de confirmation de signature au dernier signataire de la convention

Full Changelog: v75...v79