Fix prerelease bugs, reenable `@astrojs/renderer-vue` (#286)

* fix: add packages to external

* fix: improve renderer error message

* fix: reenable vue renderer

* chore: remove `extensions` from templates

* fix: reenable @astrojs/renderer-vue

* refactor: add types to snowpack plugin

* fix: update snowpack

* fix: use manual SSR wrapper for Svelte

* chore: add changesets

* chore: bump snowpack

* test: fix failing test

* chore: remove redundant entries

1 files changed, 18 insertions, 0 deletions

diff --git a/packages/renderers/renderer-svelte/Wrapper.svelte.ssr.js b/packages/renderers/renderer-svelte/Wrapper.svelte.ssr.js
new file mode 100644
index 000000000..cdd544c73
--- /dev/null
+++ b/packages/renderers/renderer-svelte/Wrapper.svelte.ssr.js
@@ -0,0 +1,18 @@
+/* App.svelte generated by Svelte v3.38.2 */
+import {
+	create_ssr_component,
+	missing_component,
+	validate_component
+} from "svelte/internal";
+
+const App = create_ssr_component(($$result, $$props, $$bindings, slots) => {
+	const { __astro_component: Component, __astro_children, ...props } = $$props;
+
+	return `${validate_component(Component || missing_component, "svelte:component").$$render($$result, Object.assign(props), {}, {
+		default: () => `${__astro_children
+		? `<astro-fragment>${__astro_children}</astro-fragment>`
+		: ``}`
+	})}`;
+});
+
+export default App;