Fix: Use correct translation key

htdocs/admin/confexped.php

htdocs/admin/expedition.php

htdocs/admin/livraison.php

htdocs/core/lib/order.lib.php

htdocs/core/lib/propal.lib.php

htdocs/core/modules/expedition/doc/pdf_merou.modules.php

htdocs/core/modules/expedition/doc/pdf_rouget.modules.php

htdocs/core/modules/expedition/mod_expedition_ribera.php

htdocs/expedition/contact.php

htdocs/expedition/fiche.php

htdocs/expedition/index.php

htdocs/expedition/note.php

htdocs/langs/en_US/orders.lang

htdocs/langs/en_US/sendings.lang

htdocs/langs/fr_FR/orders.lang

htdocs/langs/fr_FR/sendings.lang

htdocs/livraison/fiche.php