ABU DHABI (Reuters) -Chelsea were crowned FIFA Club World Cup champions for the first time as Kai Havertz struck home a penalty deep into extra time to break the hearts of Brazilian club Palmeiras on Saturday. Havertz, scorer of the winning goal in last season’s European Champions League final, was as cool as a cucumber as he converted in the 117th minute after Palmeiras’s Luan had conceded the spot kick with a handball. Palmeiras’s misery was complete when Luan was sent off in stoppage time for a desperate tackle on Havertz Chelsea have now won every major club trophy since Russian billionair…