Exports other than default are not supported in typescript

[cortopy]

Describe the bug
As per the docs when exporting something from a <script context="module">that something is available to import in javascript files.

<script context="module">
	let totalComponents = 0;

	// this allows an importer to do e.g.
	// `import Example, { alertTotal } from './Example.svelte'`
	export function alertTotal() {
		alert(totalComponents);
	}
</script>

<script>
	totalComponents += 1;
	console.log(`total number of times this component has been created: ${totalComponents}`);
</script>

To Reproduce
However, when trying a similar example to the docs in typescript I get a similar error to this:

Module '"*.svelte"' has no exported member 'alertTotal'. Did you mean to use 'import alertTotal from "*.svelte"' instead?

Expected behavior
It's possible to import types, variables, functions, etc. from any module context in a component

Ideally both import and import type should be supported

System (please complete the following information):

• OS: Linux
• IDE: VSCode
• Plugin/Package: Svelte for VS Code

[dummdidumm]

Duplicate of #550