fix plotly traces

app.py

@@ -91,6 +91,9 @@ def get_benchmark_plot(benchmark):
             y=-0.15,
             x=0.5
         ),
+    )
+    
+    fig.update_traces(
         hovertemplate="<br>".join([
             "Model: %{customdata[0]}",
             "Backend: %{customdata[1]}",