Add counter class on post-comments-counter block

[sagarnasit]

Description

PR updates post-comment-count block to add the class with the current comment counter.

For example, A post has 10 comments then the block will have a class with comments count comments-count-10.

Issue: #24953 (comment)

How has this been tested?

Make sure unit tests are passing for the block-library:

npm run test-unit packages/block-library/src/**/test

Screenshots

Types of changes

New feature (non-breaking change which adds functionality)

Checklist:

• My code is tested.
• My code follows the WordPress code style.
• My code follows the accessibility standards.
• I've tested my changes with keyboard and screen readers.
• My code has proper inline documentation.
• I've included developer documentation if appropriate.
• I've updated all React Native files affected by any refactorings/renamings in this PR (please manually search all *.native.js files for terms that need renaming or removal).

[github-actions]

👋 Thanks for your first Pull Request and for helping build the future of Gutenberg and WordPress, @sagarnasit! In case you missed it, we'd love to have you join us in our Slack community, where we hold regularly weekly meetings open to anyone to coordinate with each other.

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[carolinan]

Hi @sagarnasit Are you available to refresh this pull request?

[github-actions]

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Co-authored-by: sagarnasit <[email protected]>
Co-authored-by: carolinan <[email protected]>

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[sagarnasit]

Hi @carolinan, I have synced the pull request with the trunk. Let me know how I can assist further.