feat(style): simplify style

app.py

@@ -52,14 +52,11 @@ iface = gr.Interface(
     fn=chat_pdf,
     inputs=[gr.inputs.Textbox(label="Query")],
     outputs=create_outputs(max_sources),
-    layout="vertical",
     examples=[
         ["Give 2 species of fulgoroidea"],
         ["What colors are found among fulgoroidea?"],
         ["Why are fulgoroidea so cute?"]
-        # Add more example queries if desired
     ],
-    css=".answer, .source_documents {width: 45%; float: left; margin-right: 20px;}"
 )
 
 iface.launch(debug=True)