Update app.py

app.py

@@ -760,7 +760,7 @@ with gr.Blocks(css="""
             ("images/edm_card.png",  "EDM"),
             ("images/rock_card.png",  "Rock"),
             ("images/hiphop_card.png",  "Hip-Hop"),
-            ("images/r&b_card.png",  "R&B"),
+            ("images/rnb_card.png",  "R&B"),
             ("images/soul_card.png",  "Soul"),
             ("images/funk_card.png",  "Funk")
         ], label="Preset Cards", columns=4, height="auto")