BRUSSELS — If Europe’s mainstream politicians were under the impression that the French far right was preparing to soften its edges and settle into the rhythms of EU dealmaking, Jordan Bardella just shattered their illusions. In a wide-ranging conversation ahead of a trip to Poland, the National Rally leader doused hopes that he might prove a more accommodating European partner than his mentor, Marine Le Pen. Instead, he showed no signs of moderating plans to slash France’s EU budget