* Filter out Svelte's unexpected class prop console warnings
Astro's hydration code passes a `class` prop to Svelte components, inducing Svelte to log a warning about an unknown prop. Preempting this by exporting a `class` prop from the Svelte component isn't a viable workaround since `class` is a reserved identifier in JS.
This PR implements the console-filtering workaround suggested by @HiDeoo in #5665, borrowing the `useConsoleFilter` approach from the [preact integration](a1c0cbe604/packages/integrations/preact/src/server.ts (L72-L94)).
It would probably be better to generalize console filtering so it could be shared across multiple integrations.
Ideally there would be a way to handle this in Svelte, but as was pointed out in the issue thread even they resort to [similar cringe-inducing hackery](https://github.com/sveltejs/kit/blob/master/packages/kit/src/runtime/client/client.js#L1974-L1996) in sveltekit.
* Only filter Svelte console warnings in dev builds
* Add changeset
* Fix lint error.
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Co-authored-by: bluwy <bjornlu.dev@gmail.com>
Co-authored-by: Nate Moore <natemoo-re@users.noreply.github.com>
