[I18N] Update translation terms from Transifex

addons/account/i18n/ca.po

addons/account/i18n/fr.po

addons/account/i18n/he.po

addons/account/i18n/sv.po

addons/auth_oauth/i18n/he.po

addons/digest/i18n/he.po

addons/gamification/i18n/sv.po

addons/hr_holidays/i18n/de.po

addons/hr_maintenance/i18n/sv.po

addons/mail/i18n/ca.po

addons/mail/i18n/de.po

addons/mail/i18n/es.po

addons/mail/i18n/sv.po

addons/maintenance/i18n/sv.po

addons/membership/i18n/th.po

addons/mrp/i18n/et.po

addons/payment/i18n/sv.po

addons/payment_sips/i18n/he.po

addons/point_of_sale/i18n/sv.po

addons/portal/i18n/da.po