add filter by countrycodes, and allow to change geolocation providers

server/api/controller/settings.js

@@ -30,8 +30,10 @@ const defaultSettings = {
   allow_recurrent_event: false,
   recurrent_event_visible: false,
   allow_geolocation: true,
-  // geocoding_provider: '',
-  // tilelayer_provider: '',
+  geocoding_provider: 'https://nominatim.openstreetmap.org/',
+  geocoding_countrycodes: [],
+  tilelayer_provider: 'https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png',
+  tilelayer_provider_attribution: "<a target=\"_blank\" href=\"http://osm.org/copyright\">OpenStreetMap</a> contributors",
   enable_federation: true,
   enable_resources: false,
   hide_boosts: true,