Tears the basemaps down with the application that showed them: the switcher's listeners, its
#gl-left-panel — which lives in the map container, where the engine's own teardown leaves
it —, and what the registry knew of the map that goes away (resetBasemapRegistry). Not on
the façade: it runs when the application is unmounted, from UIModule.destroy().
Tears the basemaps down with the application that showed them: the switcher's listeners, its
#gl-left-panel— which lives in the map container, where the engine's own teardown leaves it —, and what the registry knew of the map that goes away (resetBasemapRegistry). Not on the façade: it runs when the application is unmounted, fromUIModule.destroy().