fix: move theme to launch() for Gradio 6.x compatibility

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

app.py

@@ -199,8 +199,7 @@ def create_app():
     """Create and configure the Gradio application"""
 
     with gr.Blocks(
-        title="NewPress AI - Johnny Harris Script Assistant",
-        theme="soft"
+        title="NewPress AI - Johnny Harris Script Assistant"
     ) as app:
         app.queue()  # Enable queue before defining event handlers for progress to work
 
@@ -314,5 +313,6 @@ if __name__ == "__main__":
     app.launch(
         server_name="0.0.0.0",
         server_port=7860,
-        share=False
+        share=False,
+        theme="soft"
     )