SAN FRANCISCO — The Warriors were minutes away from a potentially series-shifting loss. Ja Morant, out for Game 4 with knee soreness, wasn’t standing in their way. A 30-point win in Game 3 wasn’t the momentum shifter it seemed to be. With coach Steve Kerr out due to COVID-19, the Warriors were listless. And down 10 two minutes into the fourth quarter, they didn’t seem to have an answer. Steph Curry entered mid-way through the fourth with a reminder: In the playoffs, he always has an answer. Even if it’s subtle. Without panic, Curry dropped 18 of his 32 points in the fourth quarter to lead Gold…