feat(ui) Migrate Labelflow component to ui-next (Early WIP)

[dan-rukas]

Context

This is an early WIP of migrating the LabelFlow component and all related components to ui-next.

To do:

• Redesign to Update Legacy UI: Button, Dialog, and Input to use ui-next

Changes & Results

Testing

Checklist

PR

• [✅] My Pull Request title is descriptive, accurate and follows the
  semantic-release format and guidelines.

Code

• [] My code has been well-documented (function documentation, inline comments,
  etc.)

Public Documentation Updates

• [] The documentation page has been updated as necessary for any public API
  additions or removals.

Tested Environment

• [✅] OS: macOS Sequoia 15.2, M4 Pro
• [✅] Node version: v23.5.0
• [✅] Browser: Chrome 131.0.6778.205 (Official Build) (arm64)

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