Update app.py

app.py

@@ -268,7 +268,7 @@ with gr.Blocks() as app:
     ]
     
     theme_dropdown = gr.Dropdown(choices=themes, label="Select Theme")
-    
+
     toggle_dark = gr.Button(value="Toggle Dark", scale=1)  
 
     # Theme changing logic
@@ -285,11 +285,16 @@ with gr.Blocks() as app:
         outputs=[]
     )
 
-    toggle_dark.click(None, _js="""
-    () => {
-        document.body.classList.toggle('dark');
-    }
-    """)
+    toggle_dark.click(
+        None,
+        None,
+        None,
+        _js="""
+        () => {
+            document.body.classList.toggle('dark');
+        }
+        """
+    )
 
     with gr.Tab("Well-Being Chatbot"):
         with gr.Row():
@@ -321,7 +326,7 @@ with gr.Blocks() as app:
         symptom5 = gr.Dropdown(choices=[None] + list(X_train.columns), label="Select Symptom 5", value=None)
 
         submit_disease = gr.Button(value="Predict Disease", variant="primary", icon="fa-stethoscope")
-        
+
         disease_prediction_result = gr.Markdown(label="Predicted Diseases")
 
         submit_disease.click(