check if locale is loaded

website/src/routes/+layout.svelte

@@ -2,8 +2,11 @@
 	import '../app.pcss';
 
 	import { ModeWatcher } from 'mode-watcher';
+	import { isLoading } from 'svelte-i18n';
 </script>
 
 <ModeWatcher />
 
-<slot />
+{#if !$isLoading}
+	<slot />
+{/if}