…hades for label updates

- Modified color validation logic in `updateLabel` method to check against `WorklenzColorShades` instead of `WorklenzColorCodes`.
- Ensured that the color input is validated correctly during label updates, enhancing data integrity.

…thub.com/Worklenz/worklenz into upstreame-release-v2.1.4

…tachments

- Added functionality to retrieve user avatar URL and comment details, including created_at timestamp.
- Implemented logic to fetch and format comment attachments for the response.
- Transformed the response structure to include avatar, attachments, and other relevant comment data.