Fat Brands said Tuesday it has confidentially filed to take its Twin Peaks and Smokey Bones restaurant chains public through an initial public offering, less than a week after federal authorities charged the restaurant company and its chair Andy Wiederhorn for an alleged $47 million bogus loan scheme.Fat Brands announced its intention to spin off Twin Peaks through an IPO last year. At that time, the company had already disclosed a Securities and Exchange Commission investigation into Wiederhorn.On Thursday ...