Change the download completion notification sound for Web Xunlei.

Nowadays, a lot of film and television resources online are provided in the form of Xunlei downloads. However, you must install Web Xunlei to be able to download them. By default, Web Xunlei will make a "drip" sound when the download is complete, which can become annoying after hearing it multiple times. Can the default sound of Web Xunlei be replaced? Of course, it can!