Prevent special tokens from being added into yes no tokens, improve code readability

Prevent special tokens from being added into yes no tokens, improve code readability <!-- Congratulations! You've made it this far! Thanks for submitting a PR to Infinity! ## License & CLA By submitting this PR, I confirm that my contribution is made under the terms of the [MIT license](https://github.com/michaelfeil/infinity/blob/main/LICENSE). --> ## Related Issue <!-- If you are sure that a related issue should be automatically closed, use the syntax to close issue 123. closes #123 --> ## Checklist - [x] I have read the [CONTRIBUTING](https://github.com/michaelfeil/infinity/tree/main?tab=readme-ov-file#contribute-and-develop) guidelines. - [x] I have added tests to cover my changes. - [x] I have updated the documentation (docs folder) accordingly. ## Additional Notes Add any other context about the PR here.