Fix Gradio 6.0 deprecation: move theme to launch()

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

app.py

@@ -906,7 +906,7 @@ def process_uploaded_file(file, compute_shap):
 def create_gradio_interface():
     """Create the Gradio web interface with tabs."""
 
-    with gr.Blocks(title="miRBind2: miRNA-mRNA Binding Predictor", theme=gr.themes.Soft()) as app:
+    with gr.Blocks(title="miRBind2: miRNA-mRNA Binding Predictor") as app:
         gr.Markdown("""
         # miRBind2: miRNA-mRNA Binding Site Predictor
 
@@ -1093,7 +1093,8 @@ def main():
         share=False,  # Set to True to create public link
         server_name="0.0.0.0",  # Required for containerized hosting (HF Spaces)
         server_port=7860,
-        show_error=True
+        show_error=True,
+        theme=gr.themes.Soft()
     )