NV-2610 - [WF editor] Provide ability to rearrange steps

[gitstart]

What change does this PR introduce?

This PR enhances the user experience in the workflow area, allowing users to easily update the position of individual steps. Previously, users had to remove all steps below a wrongly placed step to reposition it. With this update, users can now directly drag and move a step to a different position, making the process more intuitive and efficient.

The following improvements were implemented to achieve a seamless repositioning experience:

• When a user starts dragging a step, it is detached from its parent and child nodes, ensuring that only the selected step is moved without affecting its descendants.
• To maintain clarity and prevent confusion, the descendants of the repositioned step remain at their original positions during the drag operation.
• The step position is now correctly updated in the form state, reflecting the changes made by the user during the repositioning.
• A special styling is applied to the step being repositioned, providing a visual cue that it can be placed in a new position.

Why was this change needed?

To allow users to change the position of steps without having to remove all steps down to the wrongly placed step.

Other information

Closes #3854

Loom Video https://www.loom.com/share/ba3167669ba545bd996181466f22cd67

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[gitstart]

@LetItRock this PR is ready for review

[github-actions]

This PR is being closed due to inactivity. Please reopen if work is intended to be continued.