New translations en.json (Spanish)

website/src/locales/es.json

@@ -36,7 +36,7 @@
         "switch_basemap": "Cambiar al mapa base anterior",
         "toggle_overlays": "Alternar capas",
         "toggle_3d": "Alternar 3D",
-        "fullscreen": "Full screen",
+        "fullscreen": "Pantalla completa",
         "settings": "Configuración",
         "distance_units": "Unidades de distancia",
         "metric": "Métrico",