By Zach Koons Social media was abuzz with heartwarming messages for the 26-year-old. Mikaela Shiffrin failed to finish her second straight race on Wednesday, skiing out in the women’s slalom. In the hours since the event, the three-time Olympic medalist has received an outpouring of support from fellow athletes. The 26-year-old recorded a “DNF” in her specialty, just two days after she missed a gate early in her first run of the giant slalom, resulting in a disqualification. Shiffrin was the reigning gold medalist in the event. On Wednesday, after she missed a gate in the first five seconds of…