link device: fix frozen UI

This patch fixes the frozen user interface that occurs after
entering an incorrect password while generating a PIN
to link the device.

Gitlab: #297
Change-Id: I9ceb7191d053696e9fcabae2f3b5fb1a85089e24

Ring/Ring/Features/Me/LinkNewDeviceViewController.swift

@@ -43,8 +43,8 @@ class LinkNewDeviceViewController: UIViewController, StoryboardBased, ViewModelB
                     self?.hideHud()
                     self?.showSuccessAlert(pin: pin)
                 case .error(let pinError):
-                    self?.showErrorAlert(error: pinError.description)
                     self?.hideHud()
+                    self?.showErrorAlert(error: pinError.description)
                 default:
                     break
                 }