Fix storm cards not flying to the storm: stop waiting on the one-shot map 'load' event

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

app/public/app.js

@@ -174,7 +174,9 @@ async function flyToHurricane(storm) {
 
   const map = mapsOverview.map;
   if (!map) return;
-  if (!map.loaded()) await new Promise(resolve => map.once('load', resolve));
+  // 'load' fires only once per map, so waiting on it hangs forever whenever tiles are mid-load;
+  // flyTo works regardless, so just make sure the canvas has its real size first.
+  map.resize();
 
   map.flyTo({ center: [lon, lat], zoom: 4, duration: 900 });