Add Authier to user showcase

[capaj]

Summary

• add Authier to the official Formik user showcase
• include an optimized copy of the existing Authier project logo
• link the canonical project homepage

I maintain Authier. Its released browser extension uses Formik in production across registration, login-item, TOTP-item, password-generator, settings, and history forms.

Production-use evidence:

• released v1.2.9 Formik dependency
• login-item form
• registration form

Validation

• yarn prettier --check website/src/users.ts
• yarn --cwd website build
• SVG validity, safety, and asset-reference checks
• local /users visual verification

The logo is the existing Authier project artwork optimized as SVG; it was not newly generated for this contribution.

[vercel]

@capaj is attempting to deploy a commit to the Formik Team on Vercel.

A member of the Team first needs to authorize it.

[changeset-bot]

⚠️ No Changeset found

Latest commit: a9b764e

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Click here to learn what changesets are, and how to add one.

Click here if you're a maintainer who wants to add a changeset to this PR

[codesandbox-ci]

This pull request is automatically built and testable in CodeSandbox.

To see build info of the built libraries, click here or the icon next to each commit SHA.