Merge branch 'release/v1.6.0'

.env.dist

.env.test

CHANGELOG.md

UPGRADE.md

assets/css/app.scss

assets/js/app.js

composer.json

composer.lock

config/domain/admin/routes/_index.yaml

config/domain/admin/routes/duplication.yaml

config/domain/admin/translations/messages.fr.yaml

config/domain/admin/translations/validators.fr.yaml

config/domain/admin/validation/duplication.yaml

config/domain/maturity/routes/survey.yaml

config/domain/registry/routes/contractor.yaml

config/domain/registry/routes/mesurement.yaml

config/domain/registry/routes/proof.yaml

config/domain/registry/routes/request.yaml

config/domain/registry/routes/treatment.yaml

config/domain/registry/routes/violation.yaml