Wrapping issues in ballot modal on narrow screens

### Describe the issue

<img width="582" alt="Screenshot 2022-12-15 at 18 02 42" src="https://user-images.githubusercontent.com/200328/207908976-51568fb5-a3b4-4ccc-8026-8065d13da38d.png">


### Code of Conduct

- [X] I agree to follow the [IETF's Code of Conduct](https://github.com/ietf-tools/.github/blob/main/CODE_OF_CONDUCT.md)