Update "One-tap" toggle to include new copy and "Learn more" link

[tofumatt]

Feature Description

The "Enable One-tap" button should be expanded with copy and a "Learn more" link that points to https://developers.google.com/identity/gsi/web/guides/offerings#one_tap

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Do not alter or remove anything below. The following sections will be managed by moderators only.

Acceptance criteria

• Text should be added under the "Enable One-tap" toggle in Sign in with Google: "One Tap allows users to sign in or sign up with one click offering smooth user entry points without redirecting to a dedicated sign in and sign up page. Learn more"
• The "Learn more" link should point to https://developers.google.com/identity/gsi/web/guides/offerings#one_tap
• The format of the text + "Learn more" link should follow this example: https://www.figma.com/design/h9yGR15Pg2DUtgERW4AFAv/Sign-in-with-Google?node-id=27-1045&t=O7yiMZwvAt5ZuVIk-1

Implementation Brief

• In assets/js/modules/sign-in-with-google/components/common/OneTapToggle.js
  • Bellow the Switch component, include <HelperText> component, with persistent prop included
    • Use createInterpolateElement to add text and learn more link from the AC. Link component should have external prop included
    • The new content should match Figma design referenced in the AC
  • If additional spacing tweaks are needed, you can apply additional class on .googlesitekit-settings-module__fields-group wrapper and target the p child in assets/sass/components/sign-in-with-google/_googlesitekit-sign-in-with-google-settings-module.scss

Test Coverage

• VRTs may need updating; no other tests required.

QA Brief

• Setup Site Kit with signInWithGoogleModule feature flag enabled
• Setup Sign in with Google module, and go to connected modules and edit Sign in with Google settings
• Verify that learn more link and helper text are added and match Figma design referenced in AC

Changelog entry

• Add info to the "One-tap" option in Sign in with Google settings.

[eugene-manuilov]

@tofumatt let's point exactly where those changes should be made and what we need to use to add that learn more link.

[eugene-manuilov]

IB ✔

[wpdarren]

QA Update: ✅

• Text under the "Enable One-tap" toggle in Sign in with Google reads: One Tap allows users to sign in or sign up with one click offering smooth user entry points without redirecting to a dedicated sign in and sign up page. Learn more
• The Learn more link points to https://developers.google.com/identity/gsi/web/guides/offerings#one_tap
• The format of the text + Learn more link follows the Figma example.