Present alert for instruction to connect to a WP.com site

Author: itsmeichigo

WooCommerce/Classes/Authentication/Navigation Exceptions/WrongAccountErrorViewModel.swift

@@ -132,7 +132,7 @@ final class WrongAccountErrorViewModel: ULAccountMismatchViewModel {
             if isSelfHostedSite {
                 return showSiteCredentialLoginAndJetpackConnection(from: viewController)
             }
-            return // TODO: show alert
+            return presentConnectToWPComSiteAlert(from: viewController)
         }
 
         showJetpackConnectionWebView(url: url, from: viewController)
@@ -232,6 +232,13 @@ private extension WrongAccountErrorViewModel {
         }
     }
 
+    func presentConnectToWPComSiteAlert(from viewController: UIViewController) {
+        let fancyAlert = FancyAlertViewController.makeConnectAccountToWPComSiteAlert()
+        fancyAlert.modalPresentationStyle = .custom
+        fancyAlert.transitioningDelegate = AppDelegate.shared.tabBarController
+        viewController.present(fancyAlert, animated: true)
+    }
+
     /// Presents a web view pointing to the Jetpack connection URL.
     ///
     func showJetpackConnectionWebView(url: URL, from viewController: UIViewController) {