Add initial date selection via querystring

src/App.svelte

@@ -37,6 +37,7 @@
   })();
 
   const params = new URL(document.location).searchParams.getAll('c');
+  const date = new Date(new URL(document.location).searchParams.get('d'));
 
   const headers = mobile
     ? {
@@ -54,6 +55,7 @@
 
   let options = writable({
     initialView: mobile ? 'listWeek' : 'timeGridWeek',
+    initialDate: date.toString() === 'Invalid Date' ? now : date,
     plugins: [
       timeGridPlugin,
       dayGridPlugin,
@@ -67,7 +69,7 @@
     allDayContent: '',
     headerToolbar: headers,
     buttonText: { resourceTimelineDay: 'Salles' },
-    scrollTime: "08:00:00",
+    scrollTime: '08:00:00',
     resourceGroupField: 'building',
     resourceAreaWidth: '27%',
     resources: Object.entries(ENSLocations).flatMap(([building, rooms]) =>