She’s accused of laundering billions of dollars in stolen bitcoin with her husband, but her alleged crimes are likely to be overshadowed by an excruciating foray into rap music. Heather Morgan, also known — largely to herself — as “raunchy rapper” Razzlekhan, was arrested along with her husband Ilya “Dutch” Lichtenstein in Manhattan on Tuesday. The headline announced by the Justice Department was the couple’s alleged involvement in laundering bitcoin stolen in a 2016 hack of the virtual currency exchange Bitfinex. But public attention was swiftly diverted when it emerged that Morgan had anot…