chore: unfork clack (#583)

* Revert "fix: revert clack unfork (#564)"

This reverts commit 83af428.

* update to alpha 1

* fix check

---------

Co-authored-by: AdrianGonz97 <[email protected]>

Author: manuel3108

packages/addons/paraglide/index.ts

@@ -31,6 +31,8 @@ const options = defineAddonOptions({
 		type: 'string',
 		default: 'en, es',
 		validate(input) {
+			if (!input) return;
+
 			const { invalidLanguageTags, validLanguageTags } = parseLanguageTagInput(input);
 
 			if (invalidLanguageTags.length > 0) {