ui(panels): Tool option components and responsive behavior for ROIThreshold

[dan-rukas]

Context

This PR updates the ROI Threshold Segmentation panel from legacy UI components to use the new UI-next library, improving the panel's responsive behavior and consistency with the Viewer.

Changes & Results

Component Replacements:

• Replaced legacy Select with UI-next's compositional Select
• Replaced legacy Label with UI-next's Label component
• Replaced legacy Input with UI-next's Input component
• Replaced legacy LegacyButton and LegacyButtonGroup with UI-next's Button

Responsive Layout Improvements:

• Replaced table-based layout with tailwind layout classes
• Spacing updates for readability
• Components will resize with panel width

Testing

The panel has been tested at various widths to ensure responsive behavior. All functionality (Strategy selection, input fields, and button actions) works as expected.

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 15.3 (24D60), Apple M4 Pro
• Node version: 23.7.0
• Browser: 134.0.6998.89 (Current)

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[sedghi]

There appears to be some padding issues on the left

maybe we add some left margin?

[dan-rukas]

There appears to be some padding issues on the left

maybe we add some left margin?

Yes, the "focus ring" goes outside the component. I added 1px padding around all edges to fix.