Backtick string literals not recognized for svg property

[TehShrike]

Example:

<g>
	<slot />
</g>
	
<script>
export default {
	namespace: `svg`
}
</script>

Error message:

The 'namespace' property must be a string literal representing a valid namespace

REPL Reproduction: https://svelte.technology/repl?version=1.58.4&gist=f0ea73178d7664c8de272e0efbc3d9de

This affects me because I started using my autoformatting script in Svelte components, and this article seemed reasonable to me: https://ponyfoo.com/articles/template-literals-strictly-better-strings

[TehShrike]

Pull request opened: #1285

[Conduitry]

Fixed in v.1.58.5.