astro-leaflet/Tutorial02Mobile.astro: log instead of alert when locate cannot be performed

Signed-off-by: Pascal Brand <pascal.brand38@gmail.com>

Author: pascal-brand38

src/content/docs/packages/astro-leaflet/Tutorial02Mobile.astro

@@ -37,7 +37,7 @@ import {
       map.on('locationfound', onLocationFound);
 
       function onLocationError(e:any) {
-          alert(e.message);
+          console.log(e.message);
       }
       map.on('locationerror', onLocationError);
     }