fix: fix error when updating logo with BaseLayout

[satazor]

Fixes #76

Not sure how to test this. The current test suit checks the HTML response, meaning there's no way to test that actual runtime JavaScript errors occur.

Checklist

• [x] run npm run test and npm run benchmark
• [ ] tests and/or benchmarks are included
• [ ] documentation is changed or added
• [x] commit message and code follows the Developer's Certification of Origin and the Code of conduct