Chegg’s warning about ChatGPT is sending shock waves through the software industry. Shares of UiPath (PATH), Shutterstock (SSTK), and Duolingo (DUOL) have seen big losses in this week’s trading amid concerns that artificial intelligence (AI) will disrupt their businesses. The companies’ share prices were down 8.4%, 9.5%, and 23.1%, respectively, according to data from S&P…