Bug: search results are rendered off screen

<img width="1554" alt="image" src="https://github.com/ember-learn/guides-source/assets/10243652/364930c3-c06d-4dd5-9a7c-cc131d3ca7e1">

After a resize the search options are repositioned correctly.

Works fine in `guidemaker-ember-template`. 🤔  (https://guidemaker-ember-template.netlify.app/release/)