Merge branch 'release/v1.4.0'

.env.dist

.env.test

.git-hooks/hooks/pre-commit-scripts/pre-commit-php

.gitignore

.gitlab-ci.yml

CHANGELOG.md

README.md

UPGRADE.md

assets/css/app.scss

assets/js/app.js

composer.json

composer.lock

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

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

config/packages/framework.yaml

config/packages/twig.yaml

config/parameters.yaml

docker-compose.yml

docker-service

docker/php-fpm/Dockerfile