refactor(forms): use transient props where appropriate

[ze-flo]

Description

This PR updates various components in react-forms to use transient props where appropriate. These changes are necessary in preparation for the upgrade to styled-components@6.x.x to ensure we avoid DOM violation errors after the transition.

Checklist

• [ ] :ok_hand: design updates will be Garden Designer approved (add the designer as a reviewer)
• [x] :globe_with_meridians: demo is up-to-date (npm start)
• [ ] :arrow_left: renders as expected with reversed (RTL) direction
• [ ] :black_circle: renders as expected in dark mode
• [ ] :metal: renders as expected with Bedrock CSS (?bedrock)
• [x] :guardsman: includes new unit tests. Maintain existing coverage (always >= 96%)
• [ ] :wheelchair: tested for WCAG 2.1 AA accessibility compliance
• [ ] :memo: tested in Chrome, Firefox, Safari, and Edge

[coveralls]

coverage: 95.896% (+0.001%) from 95.895% when pulling 46024ba291b39fab3df74d359a6f11fa291ecc48 on ze-flo/transient-props-forms into 30e06b0ae8b41de67d70bad897390ff8409aaa29 on main.

[ze-flo]

All snapshots tests in #1953 have passed. ✅

[ze-flo]

Snapshots are failing due to this change. This is expected and should be okay to merge.