added settings for map on post

srcs/plugins/map_prof/settings/mp_globals.php

@@ -37,6 +37,15 @@ if (isset($mp_settings_icon_size_factor))
 	$mp_icon_size_factor = $mp_settings_icon_size_factor;
 
 
+/* DEFAULT ZOOM
+*/
+$mp_zoom_set = [2, 5];
+if (isset($mp_settings_zoom_set))
+$mp_zoom_set = $mp_settings_zoom_set;
+// also create the variable, and set to map page by default
+$mp_zoom = $mp_zoom_set[0];
+
+
 /* DEFAULT COORDINATES
 */
 $mp_coordinates_default = (object)["lat" => 46.227638, "lng" => 2.213749]; // france