Odoo Server 15.5alpha1 - en to pt translation catalogue (4 entries)

note: module: mass_mailing_themes
en: Coupon Code
pt: Código do Coupon

note: module: mass_mailing_themes
en: Newsletter
pt: Boletim Informativo

note: module: mass_mailing_themes
en: Signature
pt: Assinatura

note: module: mass_mailing_themes
en: Unsubscribe
pt: Cancelar Subscrição
