Svelte support

[erasmus]

Update the Design system to also play nice with Svelte.

@schorle0 fyi:

⏺ The Design System itself needs no changes — it's framework-agnostic (CSS variables, YAML
tokens, GSAP presets, assets). However, there's one notable issue when targeting Svelte:
hugeicons-react (Cardinal Rule 4)
The specified icon library is hugeicons-react, which is a React package and won't work in
Svelte. Your options:

1. Use @hugeicons/svelte — Hugeicons publishes an official Svelte package. You'd install that
   instead.
2. Fallback to Lucide — The design system already permits this as a fallback ("Fallback to
   Lucide only if unavailable").

Everything else is fine

So, most of the design system should be available to Svelte apps 👌

Adding this update to make it clear to all consumers of this system.