fix: prevents querySelectorAll on media queries

[bezoerb]

This leads to an uncaught dom exception. See #23

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[bezoerb]

Seems this would also be fixed by https://github.com/GoogleChromeLabs/container-query-polyfill/pull/33 ;)

[devknoll]

We've recently made extensive changes to the polyfill, and this issue should already be addressed, so I'm going to close this out for now. That said, thank you so much for taking the time to put together a PR!