macos: "OK" should dismiss error

macos/Sources/App/macOS/AppDelegate.swift

@@ -1008,7 +1008,7 @@ class AppDelegate: NSObject,
     }
 
     @IBAction func checkForUpdates(_ sender: Any?) {
-        UpdateSimulator.notFound.simulate(with: updateViewModel)
+        UpdateSimulator.error.simulate(with: updateViewModel)
     }
 
 

macos/Sources/Features/Update/UpdateDriver.swift

@@ -38,7 +38,9 @@ class UpdateDriver: NSObject, SPUUserDriver {
     }
     
     func showUpdaterError(_ error: any Error, acknowledgement: @escaping () -> Void) {
-        viewModel.state = .error(.init(error: error, retry: retryHandler))
+        viewModel.state = .error(.init(error: error, retry: retryHandler, dismiss: { [weak viewModel] in
+            viewModel?.state = .idle
+        }))
     }
     
     func showDownloadInitiated(cancellation: @escaping () -> Void) {

macos/Sources/Features/Update/UpdatePopoverView.swift

@@ -336,6 +336,7 @@ fileprivate struct UpdateErrorView: View {
             
             HStack(spacing: 8) {
                 Button("OK") {
+                    error.dismiss()
                     dismiss()
                 }
                 .keyboardShortcut(.cancelAction)

macos/Sources/Features/Update/UpdateSimulator.swift

@@ -92,6 +92,9 @@ enum UpdateSimulator {
                 ]),
                 retry: {
                     simulateHappyPath(viewModel)
+                },
+                dismiss: {
+                    viewModel.state = .idle
                 }
             ))
         }

macos/Sources/Features/Update/UpdateViewModel.swift

@@ -172,6 +172,7 @@ enum UpdateState: Equatable {
     struct Error {
         let error: any Swift.Error
         let retry: () -> Void
+        let dismiss: () -> Void
     }
     
     struct Downloading {