layerswitcher problem

[kozka]

When establishing a layerswitcher this open from the beginning, it does not allow to hide it from the mobile. It seems that the classes are changed but the problem is the startup class. I've kept it hidden from the start for now.

map.addControl(new ol.control.LayerSwitcher({
trash: true,
extent: true,
collapsed: false
}));

[Viglino]

Last commit should fix the bug on mobile