Fix Gradio 6.0 deprecation warning

- Move theme and css parameters from gr.Blocks() to demo.launch()
- Fixes UserWarning about parameters moved in Gradio 6.0

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

app.py

@@ -711,7 +711,7 @@ Blue = negative activation, Red = positive activation.
 
 
 # Build interface
-with gr.Blocks(title="CRISPR Array Detection", theme=gr.themes.Soft(), css=CUSTOM_CSS) as demo:
+with gr.Blocks(title="CRISPR Array Detection") as demo:
     gr.Markdown("""
 # CRISPR Array Detection
 
@@ -871,4 +871,9 @@ if __name__ == "__main__":
     model = get_model()
     warmup_model(model)
     print(f"Model ready! GPU: {get_gpu_status()}")
-    demo.launch(server_name="0.0.0.0", server_port=7860)
+    demo.launch(
+        server_name="0.0.0.0",
+        server_port=7860,
+        theme=gr.themes.Soft(),
+        css=CUSTOM_CSS
+    )