Implement parametric theme and inline CSS-in-ts

• Adds theme compilation
  • a theme-specific inline Css-in-TS parser
  • reference/style with Swatch component to preview the theme
  • color values from CMS
• Updates
  • the fluid scale definition
  • prettier/eslint -> biome
• Removes
  • All (S)Css files

closes #15 (closed)
closes #32 (closed)
closes #33 (closed)
closes #96 (closed)
closes #76 (closed)
closes #111 (closed)
closes #102 (closed)
closes #103 (closed)
closes #104 (closed)
addresses #110