rename

    this.map.addControl(nav, 'top-left');

    this.map.addControl(new maplibre.FullscreenControl(), 'top-left');

    class ToggleControl {

    class MapLockControl {

      onAdd(map) {

        this._map = map;

        this._container = document.createElement('div');

        return el;

      }

    }

    const toggleControl = new ToggleControl();

    this.map.addControl(toggleControl, 'top-left');

    const mapLockControl = new MapLockControl();

    this.map.addControl(mapLockControl, 'top-left');

    // Add geolocate control to the map.

    this.map.addControl(