When I use topic_model.visualize_barchart () for visualization, can I customize the first 5 topic words of the theme

### Have you searched existing issues?  🔎

- [x] I have searched and found no existing issues

### Desribe the bug

When I use topic_model.visualize_barchart () for visualization, can I customize the first 5 topic words of the theme

### Reproduction

```python
from bertopic import BERTopic

```


### BERTopic Version

0.17.0