Fix use current location bug on Locations screen.

1Weather/UI/View controllers/Locations/LocationsViewModel.swift

@@ -213,7 +213,10 @@ public class LocationsViewModel {
         locationManager.useCurrentLocation(presentDialogsIn: viewController) { [weak self] (result: LocationManager.LocationRequestResult) in
             switch result {
             case .success:
-                // we'll get a location via a different callback, viewModelDidSelectCity will be called, and the ViewController will close.
+                DispatchQueue.main.async {
+                    guard let self = self else { return }
+                    self.delegate?.viewModelDidSelectCity(model: self)
+                }
                 break
             case .useSearch:
                 // do nothing, we're already in Search