chore: improve logic

Author: russellwheatley

samples/swiftui/FirebaseSwiftUIExample/FirebaseSwiftUIExample/ContentView.swift

@@ -25,7 +25,7 @@ struct ContentView: View {
     actionCodeSettings.linkDomain = "flutterfire-e2e-tests.firebaseapp.com"
     actionCodeSettings.setIOSBundleID(Bundle.main.bundleIdentifier!)
     let configuration = AuthConfiguration(
-      shouldAutoUpgradeAnonymousUsers: uiAuthEmulator ? false : true,
+      shouldAutoUpgradeAnonymousUsers: !uiAuthEmulator,
       tosUrl: URL(string: "https://example.com/tos"),
       privacyPolicyUrl: URL(string: "https://example.com/privacy"),
       emailLinkSignInActionCodeSettings: actionCodeSettings