feat: improve multi-paragraph comment handling

Comments should respect line-breaks

See i.e.:  
https://btcmap.org/merchant/34519#comments


### Screenshots

<img width="1922" height="1060" alt="Image" src="https://github.com/user-attachments/assets/c2e06d2b-dc70-4dea-8b39-0c4acd982f5f" />

<img width="1945" height="627" alt="Image" src="https://github.com/user-attachments/assets/2b5a697e-b95f-401b-b758-ee943cdcadb3" />