[WIP] Update the credit page

config/config-dev.json

config/config-rec.json

src/app/core/components/main/footer/footer.component.html

...ditorialisation/components/credits/credits.component.html

...ditorialisation/components/credits/credits.component.scss

.../editorialisation/components/credits/credits.component.ts

src/app/editorialisation/editorialisation-routing.module.ts

src/app/editorialisation/services/credits.service.ts

src/assets/config/config.json

src/i18n/messages.en.xlf

src/i18n/messages.fr.xlf

src/i18n/traductions.fr.ts

src/i18n/traductions.ts