feat!: add modern SASS compiler support

[userquin]

This PR includes:

• update Vite to 5.4.1 via resolutions (Nuxt 3.12.4 using Vite 5.4.0)
• modern SASS compiler detection and configuration
• new playground for modern SASS compiler
• update Vuetify to 3.7.0
• update pnpm to 9.7.1
• update VitePress to 1.3.2
• update @vite-pwa/vitepress to 0.5.0 and include vite-plugin-pwa and workbox-window
• use Vite virtual convention on constants module, the problem was on vite-plugin-inspect: fix: virtual modules antfu-collective/vite-plugin-inspect#110
• include DPR in SSR section
• include modern SASS compiler docs page
• update Compatibility Matrix

If someone wants to play with the modern-sass-compiler playground (or use the link here #255 (comment)):

• from root run pnpm install (only once), then run pnpm prepack
• open a new terminal and change to modern-sass-compiler folder: cd modern-sass-compiler
• run dev server from modern-sass-compiler folder: pnpm dev
• you can play with the configuration to enable or disable SASS variables (rn too slow)

[netlify]

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[pkg-pr-new]

commit: d93d7fa

pnpm add https://pkg.pr.new/vuetify-nuxt-module@255

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