Fix MFA QR code

[ghsteff]

PR Checklist

Please check if your PR fulfills the following requirements:

• [ ] Tests for the changes have been added (for bug fixes / features)
• [ ] Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

[x] Bugfix
[ ] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Build related changes
[ ] CI related changes
[ ] Documentation content changes
[ ] Other... Please describe:

Does this PR introduce a breaking change?

[ ] Yes
[x] No

Other information

[netlify[bot]]

✅ Deploy Preview for reablocks-storybook ready!

Name	Link
🔨 Latest commit	54ed42559b81289b6f0a3cc76b4711845bc90da9
🔍 Latest deploy log	https://app.netlify.com/sites/reablocks-storybook/deploys/664618a4d694ec0008d745b6
😎 Deploy Preview	https://deploy-preview-190--reablocks-storybook.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site configuration.