URL Argument and Routing Fixes

Update resources/js/composables/useUrlArgument.js to correctly match --h (no colon) format instead of --h: for hashkey URLs.
Update app/Support/RouteArgumentParser.php in decodeHashValue to perform urldecode after base64_decode, mirroring frontend's encodeURIComponent.
Test direct navigation to a store market page to verify that the store is successfully found.