fix: handle patterns in destructured literals

[gtm-nayan]

fixes #8863

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Tests and linting

• Run the tests with pnpm test and lint the project with pnpm lint

[benmccann]

Hmm. I have no idea why lint is failing due to some site error since merging in the latest changes from master. @PuruVJ have you ever seen this error before?

[PuruVJ]

That is happening because the get_contributors.js script, when trying to fetch from github, is getting an error response, which is failing in the Array.isArray check. Im sure its no problem, retriggering lint should make it go away

[gtm-nayan]

Yeah, reran it a few minutes ago and the error went away.

[benmccann]

lgtm though it should probably get a final approval from someone with more svelte core experience