SAN FRANCISCO — Nothing about Klay Thompson’s approach changed, he insists. But the numbers certainly have. It wasn’t long ago that Thompson reached the lowest point of his season, benched for the first time in his career during crunch time in a loss to Phoenix on Dec. 12. He threw towels, kicked chairs and yelled at anyone around him who could hear. For as ugly it looked, something sparked in his vexed mind. Since the Warriors game against the Los Angeles Clippers on Dec. 14, Thompson is averaging 25.7 points per game shooting 50% from 3 on 11 attempts per game. Golden State is a total plus-1…