Fixes #88113 by changing the way the namespaced WMS request done so we only retrieve layers in the gore workspace for the "add wms layer" feature don't make Arica's Geoserver throw out a NullPointerException (O'Higgins' Geoserver worked just fine though)
Merge pull request #242 from luisromangz/88113-ChangeNamespacedWMSRequestToAvoidGeoServerNPE

Fixes #88113 by changing the way the namespaced WMS request done so we o...