KTM Tech3's Miguel Oliveira became the first Portuguese rider to claim a MotoGP victory in the Styrian Grand Prix on Sunday in a race that was restarted after a horror crash involving Championship contender Maverick Vinales produced a red flag. Oliveira edged Pramac Ducati's Jack Miller and pole-sitter Pol Espargaro of KTM in a three-way battle on the final lap, …