fix: handle reassignment of $$props and $$restProps

[dummdidumm]

Some libraries assign to properties of $$props and $$restProps. These were previously resulting in an error but are now handled properly

#10359 (comment)

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[changeset-bot]

🦋 Changeset detected

Latest commit: 603c244

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

This PR includes changesets to release 1 package

Name	Type
svelte	Patch

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