Fix Gradio deprecation warning - move theme to launch() method

app.py

@@ -142,7 +142,7 @@ def predict_batch(emails_text, threshold):
     )
     return output
 
-with gr.Blocks(theme=gr.themes.Soft(), title="SpamShield AI") as demo:
+with gr.Blocks(title="SpamShield AI") as demo:
 
     gr.Markdown("""
     # 🛡️ SpamShield AI — Email Spam Classifier
@@ -282,4 +282,4 @@ with gr.Blocks(theme=gr.themes.Soft(), title="SpamShield AI") as demo:
             > Always use proper email security tools in production.
             """)
 
-demo.launch()
+demo.launch(theme=gr.themes.Soft())