update extension api

website/src/routes/[[language]]/app/+layout.svelte

@@ -0,0 +1,13 @@
+<script lang="ts">
+    import { browser } from '$app/environment';
+    import { extensionAPI } from '$lib/components/map/layer-control/extension-api';
+    import type { Snippet } from 'svelte';
+
+    let { children }: { children: Snippet } = $props();
+
+    if (browser) {
+        extensionAPI.init();
+    }
+</script>
+
+{@render children()}