Update dependency prettier-plugin-svelte to v4

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
prettier-plugin-svelte	^3.4.0 → ^4.0.0

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Release Notes

sveltejs/prettier-plugin-svelte (prettier-plugin-svelte)

v4.1.1

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Patch Changes

• fix: preserve nested rest patterns in {#each} destructuring (#​537)

• fix: preserve whitespace inside <textarea> (its content is whitespace-sensitive, like <pre>) (#​540)

• fix: don't drop <script>/<style> content when the closing tag has whitespace (</script >) (#​539)

v4.1.0

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Minor Changes

• feat: support Svelte 5 declaration tags (#​533)

v4.0.1

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Patch Changes

• fix: print @const correctly (#​530)

v4.0.0

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• (breaking) Require Svelte 5
• (breaking) Remove svelteBracketNewLine option
• (breaking) Remove svelteStrictMode option
• (fix) Keep trailing <!-- #endregion --> comments below svelte:options / scripts / styles

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