STOCKHOLM (Reuters) – Tesla lost a legal battle with Sweden’s postal service on Thursday as a fight with Nordic trade unions escalates. A Swedish court said PostNord does not for the time being need to deliver licence plates to Tesla that are being blocked by the postal service’s workers, in the latest twist in a fight over collective bargaining agreements. Tesla is facing growing pressure in Sweden, Norway and Denmark from unions backing Swedish IF Metall’s mechanics who went on strike on Oct. 27 demanding a collective agreement with the company. A large Danish pension fund on Wednesday said …