Update pt_PT

htdocs/langs/pt_PT/admin.lang

htdocs/langs/pt_PT/agenda.lang

htdocs/langs/pt_PT/banks.lang

htdocs/langs/pt_PT/bills.lang

htdocs/langs/pt_PT/bookmarks.lang

htdocs/langs/pt_PT/boxes.lang

htdocs/langs/pt_PT/cashdesk.lang

htdocs/langs/pt_PT/categories.lang

htdocs/langs/pt_PT/commercial.lang

htdocs/langs/pt_PT/companies.lang

htdocs/langs/pt_PT/compta.lang

htdocs/langs/pt_PT/contracts.lang

htdocs/langs/pt_PT/deliveries.lang

htdocs/langs/pt_PT/dict.lang

htdocs/langs/pt_PT/donations.lang

htdocs/langs/pt_PT/ecm.lang

htdocs/langs/pt_PT/errors.lang

htdocs/langs/pt_PT/exports.lang

htdocs/langs/pt_PT/externalsite.lang

htdocs/langs/pt_PT/ftp.lang