refactor: convert FieldValueToggleFilter to function component

[CollegeRideOut]

Summary

Convert FieldValueToggleFilter from a class component to a stateless function component.

• Refactored to use FC<FieldValueToggleFilterProps> style
• Stateless render-only; no functional changes
• Prettier formatting applied

API Changes

None — this is an internal component and its API hasn’t changed.

Screenshots

Not applicable — no visual changes.

Impact Assessment

• 🔴 Breaking changes — None
• 💅 Visual changes — None
• 🧪 Test impact — All existing tests pass
• 🔧 Hard to integrate — N/A

Impact level: 🟢 None

Release Readiness

• Documentation — N/A
• Figma — N/A
• Migration guide — N/A
• Adoption plan — N/A

QA instructions for reviewer

• Verify the FieldValueToggleFilter behaves as before in Storybook and any demo pages
• Confirm that toggling the filter updates the query as expected

Checklist before marking Ready for Review

• Filled out all sections above
• QA: Verified light/dark mode, accessibility, keyboard navigation
• Tests: Existing Jest/Cypress tests pass
• Changelog: Not needed (internal component)
• Breaking changes: None

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[github-actions]

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