Preview genre samples before selecting

Description: Add the ability to hear a short audio sample of each genre before choosing it when creating a song. At the moment genres are selected from text labels only, so you have to generate a full song to find out what a genre actually sounds like. That makes it slow to explore unfamiliar genres or to tell similar ones apart. What users are asking for: A short audio sample attached to each genre in the selector The ability to play it before committing to a generation Helps particularly with genres that sound similar by name, or ones a user isn’t familiar with This would speed up finding the right sound and reduce generations spent on genre experimentation.