fix: remove usage of computedStyleMap

[Varixo]

computedStyleMap is not supported on Firefox

[changeset-bot]

🦋 Changeset detected

Latest commit: 20fa9bd

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 4 packages

Name	Type
@builder.io/qwik	Patch
eslint-plugin-qwik	Patch
@builder.io/qwik-city	Patch
create-qwik	Patch

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npm i https://pkg.pr.new/create-qwik@7252

commit: 20fa9bd

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Name	Status	Preview	Last Commit
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