chore: ignore playground site folder for prettier

[chouchouji]

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• [ ] Fix linting errors
• [ ] Tests have been added / updated (or snapshots)

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Name	Status	Preview	Comments	Updated (UTC)
varlet	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Oct 29, 2024 0:07am

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Open in Stackblitz

@varlet/cli

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@varlet/eslint-config

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@varlet/import-resolver

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@varlet/preset-tailwindcss

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@varlet/icons

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@varlet/preset-unocss

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@varlet/shared

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@varlet/touch-emulator

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@varlet/ui

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@varlet/use

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@varlet/vite-plugins

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commit: bb3098e