Make .mp3 === audioFile assertions more generic
Sometimes, km-app tests if file is an audio file by finding whether the extension is .mp3 or not.
This is not the best way to do that as there are other file extensions that are audio files.
Sometimes, km-app tests if file is an audio file by finding whether the extension is .mp3 or not.
This is not the best way to do that as there are other file extensions that are audio files.