EU leaders have nominated current European Commission head Ursula von der Leyen for a second five-year term in the bloc’s top job at a summit in Brussels.Estonian Prime Minister Kaja Kallas was picked as the EU’s next foreign affairs chief and former Portuguese prime minister António Costa was chosen as the next chairman of EU summits.All three candidates are from centrist, pro-EU factions.The European Parliament is due to vote on the nominations next month.Ursula von der Leyen is from Germany’s centre-right, António Costa is a socialist and Kaja Kallas a liberal.There had been…