Code syntax in a comment is not highlighted

Issue Summary

Code syntax in a comment is not highlighted.

Steps to Reproduce

1. Navigate to any pull request
2. Add a new comment with code syntax and language e.g. javascript
3. Check the comment after saving

Expected Results

The comment syntax should be highlighted.

Actual Results

The code syntax stays grey and it's not highlighted

Workaround

Currently there is no known workaround for this behavior. A workaround will be added here when available