fix: add back ssr

src/routes/+page.svelte

@@ -1,11 +1,13 @@
 <script lang="ts">
+	import { onMount } from 'svelte';
+
 	import 'leaflet/dist/leaflet.css';
 	import lignes from './lignes.json';
 
-	import L from 'leaflet';
+	onMount(async () => {
+		const L = (await import('leaflet')).default;
 
-	function createMap(node: HTMLElement) {
-		const map = L.map(node).setView([45.76, 4.832], 13);
+		const map = L.map('map').setView([45.76, 4.832], 13);
 
 		L.tileLayer('https://tile.openstreetmap.org/{z}/{x}/{y}.png', {
 			maxZoom: 19,
@@ -18,13 +20,13 @@
 			// @ts-ignore
 			L.geoJSON(feature, { style: { color } }).addTo(map);
 		});
-	}
+	});
 </script>
 
-<div class="map" use:createMap></div>
+<div id="map"></div>
 
 <style>
-	.map {
+	#map {
 		height: 100vh;
 		width: 100%;
 	}

src/routes/+page.ts

@@ -1 +0,0 @@
-export const ssr = false;