fix(translations): fix overrides post server-client split

The translationOverrides configuration was moved to the wrong package during the client/server split. Also, I've noticed that if the translationOverrides.js is not present at the time the container is built, it creates a folder named translationOverrides.js, which is not what we want. To get around this I'm creating a folder packages/client/config/translation/ to become the docker volume and contain the translationOverrides.js.