KIM HARRISBERG FOR Davy Tsopo, a WiFi password changed his life. When Tsopo lost his cleaning job at a Johannesburg restaurant during lockdown, a neighbour thought sharing his password might help distract Tsopo from his money worries. At first, Tsopo watched episodes of U.S. reality baking show Cake Boss to pass the time as he and his wife cared for their newborn son, but soon found himself scribbling down recipes for chocolate gateau, scones, biscuits and red velvet cake too. "This is where it all began," said Tsopo, 35, holding a worn-out notebook filled with the recipes in the kitchen…