Place: Reduce image API call to private_hash

Avoids all the unnecessary informations such as thumbnails, etc

src/routes/location/[country]/[place].svelte

@@ -5,7 +5,7 @@
     export async function preload (page, session) {
         // Load photos
         const fields = [
-            'id', 'name', 'slug', 'date', 'image.*',
+            'id', 'name', 'slug', 'date', 'image.private_hash',
             'location.id', 'location.name', 'location.slug', 'location.region', 'location.country.name', 'location.country.slug',
             'created_on', 'modified_on'
         ].join(',')