Remove horizontal rule from Gradio interface header for cleaner presentation.

app.py

@@ -75,7 +75,6 @@ with gr.Blocks(title="Nanonets OCR Demo") as demo:
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             </a>
         </div>
-        <hr style="width: 70%; margin: 15px auto; border: none; height: 1px; background-color: #e5e7eb;">
     </div>
     """)