[I18N] Update translation terms from Transifex

addons/account/i18n/sl.po

addons/account/i18n/zh_TW.po

addons/account_voucher/i18n/sl.po

addons/auth_oauth/i18n/zh_CN.po

addons/auth_signup/i18n/sl.po

addons/base_automation/i18n/sl.po

addons/base_geolocalize/i18n/sl.po

addons/base_import_module/i18n/zh_CN.po

addons/base_setup/i18n/ko.po

addons/calendar/i18n/sl.po

addons/crm/i18n/sl.po

addons/crm/i18n/uk.po

addons/delivery/i18n/ro.po

addons/delivery/i18n/zh_CN.po

addons/fleet/i18n/zh_CN.po

addons/gamification/i18n/zh_CN.po

addons/hr/i18n/hr.po

addons/hr/i18n/sl.po

addons/hr_attendance/i18n/nl.po

addons/hr_attendance/i18n/sl.po