Merge pull request 'feat(Directus): Add DIRECTUS_ prefix like others variables' (#65) from directus_cors into main

## Détails

- Ajout du préfixe `DIRECTUS_`

## Pourquoi

- Pour garder une cohérence dans le nommage des variables

Reviewed-on: #65

directus/docker-compose.yml

@@ -24,8 +24,8 @@ services:
       ADMIN_EMAIL: ${DIRECTUS_ADMIN_EMAIL:?err}
       ADMIN_PASSWORD: ${DIRECTUS_ADMIN_PASSWORD:?err}
       PUBLIC_URL: ${DIRECTUS_PUBLIC_URL:?err}
-      CORS_ENABLED: ${CORS_ENABLED:-false}
-      CORS_ORIGIN: ${CORS_ORIGIN:-false}
+      CORS_ENABLED: ${DIRECTUS_CORS_ENABLED:-false}
+      CORS_ORIGIN: ${DIRECTUS_CORS_ORIGIN:-false}
 
       DB_CLIENT: 'pg'
       DB_HOST: ${POSTGRES_CONTAINER_NAME:-postgres} # Default name is same as ../postgres/docker-compose.yml:8