Remove padding on map render

We don’t need it now we’re projecting a bigger bleed.

app/templates/views/broadcast/preview-areas.html

@@ -73,7 +73,7 @@
     var polygonGroup = L.featureGroup(polygons).addTo(mymap);
     mymap.fitBounds(
       polygonGroup.getBounds(),
-      {padding: [5, 5]}
+      {padding: [1, 1]}
     );
 
   </script>