By Joseph McBride The San Francisco 49ers head back to the NFC Championship on Sunday where they face the Detroit Lions, but the roster feels like a different team to the one that suffered heartbreak in 2022. It’s their fourth NFC Championship in five seasons, the first being a 37-20 win over the Green Bay Packers, and in the Super Bowl the 49ers were just 15 minutes away from glory until Patrick Mahomes and the Kansas City Chiefs scored 21 points in the fourth quarter to complete a huge comeback. In 2021 they lost by three points against the Los Angeles Rams, and in 2022 breakout quarterback …