WASHINGTON — Conservative activist Virginia “Ginni” Thomas, the wife of Supreme Court Justice Clarence Thomas, appeared on Thursday for a voluntary interview with the House panel investigating the Jan. 6 insurrection.The committee has for months sought an interview with Thomas in an effort to know more about her role in trying to help former President Donald Trump overturn his election defeat. She texted with White House chief of staff Mark Meadows and contacted lawmakers in Arizona and Wisconsin in the …