fix(design-system): docs after tailwind migration

[JammingBen]

refs #937

[Copilot]

Pull Request Overview

This PR migrates the design system documentation from SCSS to Tailwind CSS, updating configuration and styling to support the new CSS framework.

• Adds Tailwind CSS dependencies and configuration
• Updates documentation component styling to use Tailwind classes
• Migrates VitePress theme configuration to work with Tailwind CSS

Reviewed Changes

Copilot reviewed 8 out of 9 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
packages/design-system/src/styles/tailwind.css	Adds font configuration to Tailwind theme
packages/design-system/package.json	Adds Tailwind CSS and Vite plugin dependencies
packages/design-system/docs/components/OcRecipient/OcRecipient.md	Updates component examples to include required icon property
packages/design-system/docs/.vitepress/theme/tailwind.css	Creates new Tailwind CSS import file for VitePress theme
packages/design-system/docs/.vitepress/theme/index.ts	Imports new Tailwind CSS and layer styles
packages/design-system/docs/.vitepress/theme/custom.scss	Updates SCSS styling to work with Tailwind migration
packages/design-system/docs/.vitepress/config.ts	Configures Tailwind plugin and PostCSS processing
packages/design-system/docs/.vitepress/components/LiveCodeBlock.vue	Replaces SCSS classes with Tailwind utility classes

Files not reviewed (1)

• pnpm-lock.yaml: Language not supported

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