Former White House strategist Steve Bannon was noticeably absent from the inauguration’s presidential fanfare on Monday amid his ongoing feud with Elon Musk. Bannon’s normally active social media accounts were also radio silent on President Donald Trump’s big day, adding to the rumors of a growing civil war between MAGA’s old guard, led by Bannon, and its new billionaire leaders led by Musk. While Bannon was MIA during the swearing-in ceremony,…