Svelte 5: API docs solution

[techniq]

Since the AST has changed in Svelte 5 (and is not a public API guarantee), currently sveld's ComponentParser does not work, which we use to generate the API docs for each component (LayerChart as well).

Svelte 4	Svelte 5

although the instance AST looks identical for a very basic example:

Svelte 4	Svelte 5