Update app.py

app.py

@@ -65,9 +65,9 @@ if dataset and stl.button("embed image dataset"):
 if embedded_data and embedder:
     finder = init_search(embedded_data, embedder)
     
-    search_term = stl.text_input("Text description/search for image")
+search_term = stl.text_input("Text description/search for image")
 
-if search_term:
+if search_term is not None:
     with stl.spinner("retrieving images with description.."):
         scores, ret_images = get_images_from_description(search_term)
         stl.success(f"sucessfully retrieved {len(ret_images)} images")