Fix Vue & Svelte server renderer types

[aminevg]

Changes

When using Astro's container API outside of vite/vitest, renderers have to be manually imported and stored inside the container (as per docs).

import reactRenderer from "@astrojs/react/server.js";
import vueRenderer from "@astrojs/vue/server.js";
import mdxRenderer from "@astrojs/mdx/server.js";

const container = await experimental_AstroContainer.create();
container.addServerRenderer({renderer: vueRenderer});
container.addServerRenderer({renderer: mdxRenderer});

container.addServerRenderer({ renderer: reactRenderer });
container.addClientRenderer({ name: "@astrojs/react", entrypoint: "@astrojs/react/client.js" });

However, importing the Vue and Svelte server renderers results in a Typescript error:

import reactRenderer from "@astrojs/react/server.js"; // no error
import vueRenderer from "@astrojs/vue/server.js"; // error: 'vueRenderer' is a type and must be imported using a type-only import when 'verbatimModuleSyntax' is enabled.
import svelteRenderer from "@astrojs/svelte/server.js"; // error: 'vueRenderer' is a type and must be imported using a type-only import when 'verbatimModuleSyntax' is enabled.

const container = await experimental_AstroContainer.create();
container.addServerRenderer({renderer: reactRenderer}); // no error
container.addServerRenderer({renderer: vueRenderer}); // error: Argument of type '{ renderer: any; }' is not assignable to parameter of type 'AddServerRenderer'.
container.addServerRenderer({renderer: svelteRenderer}); // error: Argument of type '{ renderer: any; }' is not assignable to parameter of type 'AddServerRenderer'.

This PR fixes the Vue & Svelte server renderer types (server.d.ts) to be more in line with React's types and fix the Typescript errors.

Testing

This was tested with a local project using the above code snippets.
(Could a test be written for the types?)

Docs

No documentation change needed as far as I can tell.

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🦋 Changeset detected

Latest commit: 12bec1d

The changes in this PR will be included in the next version bump.

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[ematipico]

Thank you @aminevg, can you please add a changeset?

[ematipico]

The fix looks good, but we miss the changeset

[aminevg]

@ematipico Thank you! I'll make sure to include a changeset next time.