Update content_based and collaborative: fix inplace warnings, remove launch()

collaborative.py

@@ -406,15 +406,7 @@ def collaborative_ui(user_id):
 # --- STEP 7: Launch Gradio Interface ---
 user_id_list = sorted(user_item_matrix.index.tolist())
 
-demo = gr.Interface(
-    fn=collaborative_ui,
-    inputs=gr.Dropdown(choices=user_id_list, label="Select User ID"),
-    outputs=gr.HTML(label="Collaborative Recommendations"),
-    title="👥 Collaborative Filtering Recommender",
-    description="Choose a user to get product recommendations based on user similarity (Collaborative Filtering)."
-)
-
-demo.launch()
+
 
 
 # In[ ]: