title: Change gestureHandling in Leaflet when map is already initalized
body: <p>I am using Leaflet fo implement a map in my website. 
  I use the feature <strong>gestureHandling</strong> to make sure that scrolling is not captured by the map. Everything works fine - but I would like to change the <strong>gestureHandling</strong> attribute later in the code when a user choses to make the map fullscreen. </p>
  
  <p>I can't get it to work. Do I have to reinitialise the map somehow?</p>
  
  <p>Thanks in advance!</p>
  
  <p>This is my Code: </p>
  
  <pre><code>map = L.map($map[0], {
      center: new L.LatLng(47, 10),
      zoom: 14,
      minZoom: 2,
      maxZoom: 18,
      layers: [layerGroup],
      gestureHandling: true
  });
  
  $('body').on('click','.resize-toggler',function(){
      map.gestureHandling = false;
  })
  </code></pre>