Fix Undefined variable on photo admin page

Author: xbgmsharp

admin/admin_photo.php

@@ -142,6 +142,8 @@
 // Easy access
 define('osm_place_table', $prefixeTable.'osm_places');
 // Save location, eg Place
+$list_of_places = [];
+$available_places = [];
   $query = '
 SELECT id, name, latitude, longitude
   FROM '.osm_place_table.'

admin/admin_tag.tpl

@@ -77,7 +77,7 @@ Refer to the <a href="https://github.com/xbgmsharp/piwigo-openstreetmap/wiki" ta
 		<li>
 			<label>
 				{'Name of the tag group'|@translate}:
-				<input type="text" name="osm_taggroup" value="{$sync_options.osm_tag_group}" placeholder="location" required="" />
+				<input type="text" name="osm_taggroup" value="{$sync_options.osm_tag_group}" placeholder="location" required="" size="30"/>
 			</label>
 		</li>
 		<li>