Update dependency svelte to v4.2.18

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
svelte (source)	4.2.17 -> 4.2.18

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Release Notes

sveltejs/svelte (svelte)

### [`v4.2.18`](https://togithub.com/sveltejs/svelte/releases/tag/svelte%404.2.18) [Compare Source](https://togithub.com/sveltejs/svelte/compare/svelte@4.2.17...svelte@4.2.18) ##### Patch Changes - chore: speed up regex ([#​11922](https://togithub.com/sveltejs/svelte/pull/11922))

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