chore: add .svelte-kit to eslint ignores

[fenghan34]

Description

When I ran the lint command in the Vitest codebase, got the following result. The directory .svelte-kit was generated after runing pnpm test:ci, I thought it might be better to add it to eslint ignore list.

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• It's really useful if your PR references an issue where it is discussed ahead of time. If the feature is substantial or introduces breaking changes without a discussion, PR might be closed.
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Tests

• Run the tests with pnpm test:ci.

Documentation

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Changesets

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