Visualize comments for choice items

Dashboard / Tabulator should visualize answers comments of invidual choice items: [Comment fields for individual choice options](https://surveyjs.io/stay-updated/release-notes/v2.3.0#comment-fields-for-individual-choice-options).

<img width="1158" height="768" alt="Image" src="https://github.com/user-attachments/assets/4b145ab0-c9a2-460d-a975-9178d70e30c0" />

