Brittany Mahomes and Jackson Mahomes were spotted sitting side-by-side at this year’s Super Bowl just two days after Brittany snubbed Jackson at a Las Vegas club, RadarOnline.com can report. Both Brittany and Jackson were caught sitting together at Allegiant Stadium on Sunday night as they cheered on Kansas City Chiefs star Patrick Mahomes during Super Bowl LVIII. The in-laws appeared civil as they sat together in a VIP suite on Sunday night inside the Las Vegas stadium to watch the Chiefs take on the San Francisco 49ers. Brittany, 28, was spotted in a cozy white fur jacket while Jackson, 23, …