[ticket/11649] Expose Twig through the container

PHPBB3-11649
[ticket/11649] Fix coding style

PHPBB3-11649
Merge remote-tracking branch 'github-nicofuma/ticket/11649' into develop

* github-nicofuma/ticket/11649:
  [ticket/11649] Fix coding style
  [ticket/11649] Expose Twig through the container