With Facebook fans, YouTube viewers and Twitter followers in the tens of thousands, makeup artist Kandee Johnson has turned to the Internet to raise money to hire a lawyer to fight child endangerment charges.Johnson, 31, was charged with a gross misdemeanor, accused of leaving her 12-year-old son unsupervised in November in a house one deputy described as "borderline unsanitary."Johnson was in Los Angeles and her son was at their Johnson Lane-area home alone "for one or more days," according to the criminal complaint.A neighbor called deputies, according to reports, because Johnson's son and a 12-year-old friend used cans of hairspray …