Bug with Leaflet.GestureHandling

We want to disable `Leaflet.GestureHandling` when the map is in full screen.

This works fine when we don't use javascript modules, like in this branch.

When we use javascript modules, it does not work anymore.

To reproduce the bug:

clone the master branch of this repo
install dependencies: npm i
build the js bundle: npm run build
serve and open the page. For example with http-server: http-server . and open http://127.0.0.1:8080)
in the browser, click the fullscreen button and try to zoom-in or zoom-out.

The bug: in fullscreen Leaflet.GestureHandling is still enabled.

What is expected: in fullscreen Leaflet.GestureHandling should be disabled.