Odoo Server saas~15.3 - en to ca translation catalogue (4 entries)

note: module: website_crm_livechat
en: %s's New Lead
ca: Capçalera nova de %s

note: module: website_crm_livechat
en: Chatbot Script Step
ca: Pas de l'script de Chatbot

note: module: website_crm_livechat
en: Discussion Channel
ca: Canal de debat

note: module: website_crm_livechat
en: Lead/Opportunity
ca: Iniciativa/Oportunitat
