Fix(TaskNode): set nameLabelClass attribute

[jenny-s51]

What

Closes #151

Description

• Set nameLabelClass attribute on TaskNode
• Marked prop as deprecated in WhenDecorator

Type of change

• [ ] Feature
• [x] Bugfix
• [ ] Code style update (formatting, renaming)
• [ ] Refactoring (no functional changes, no api changes)
• [ ] Build related changes
• [ ] Documentation content changes
• [ ] Other (please describe):

[github-actions[bot]]

:tada: This PR is included in version 5.3.0-prerelease.3 :tada:

The release is available on:

• GitHub release
• npm package (@prerelease dist-tag)

Your semantic-release bot :package::rocket: