Roll pyharp and tidy the card description

app.py

@@ -27,11 +27,9 @@ MAX_AUDIO_SECONDS = 30
 model_card = ModelCard(
     name="Stable Audio 3",
     description=(
-        (
-            "Restyle, inpaint, or continue music audio using a text prompt. "
-            "Repository: https://github.com/Stability-AI/stable-audio-3 Paper: "
-            "https://arxiv.org/abs/2605.17991"
-        )
+        "Restyle, inpaint, or continue music audio using a text prompt. "
+        "Repository: https://github.com/Stability-AI/stable-audio-3 Paper: "
+        "https://arxiv.org/abs/2605.17991"
     ),
     author="Zach Evans, Julian D. Parker, Matthew Rice, et al.",
     tags=[Subcategory.EDITING],