Move locale files, fix syntax error in fr-informal

Gemfile.lock

config/locales/defaults/cs.yml

config/locales/defaults/cy.yml

config/locales/defaults/de.yml

config/locales/defaults/en.yml

config/locales/defaults/es.yml

config/locales/defaults/fi.yml

config/locales/defaults/fr-informal.yml

config/locales/defaults/fr.yml

config/locales/defaults/it.yml

config/locales/defaults/lt.yml

config/locales/defaults/pl.yml

config/locales/defaults/pt-BR.yml

config/locales/defaults/pt-PT.yml

config/locales/defaults/ro.yml

config/locales/defaults/ru.yml

config/locales/defaults/sv.yml

config/locales/devise.de.yml

config/locales/devise.es.yml

config/locales/devise.fr.yml