disabled the button and removed the empty captions

app.py

@@ -199,6 +199,9 @@ def save_annotation(caption, session_data):
 
         # Concatenate with the existing dataset and push the updated dataset to Hugging Face
         dataset = concatenate_datasets([dataset, new_data])
+        
+        dataset = dataset.filter(lambda example: example['caption'].strip() != "")
+
         dataset.push_to_hub(dataset_name)
         print("Pushed updated dataset")