[AltWidget] Supports refreshing apps directly from home screen

AltStore/Intents/App Intents/RefreshAllAppsWidgetIntent.swift

@@ -0,0 +1,38 @@
+//
+//  RefreshAllAppsWidgetIntent.swift
+//  AltStore
+//
+//  Created by Riley Testut on 8/18/23.
+//  Copyright © 2023 Riley Testut. All rights reserved.
+//
+
+import AppIntents
+
+@available(iOS 17, *)
+struct RefreshAllAppsWidgetIntent: AppIntent, ProgressReportingIntent
+{
+    static var title: LocalizedStringResource { "Refresh Apps via Widget" }
+    static var isDiscoverable: Bool { false } // Don't show in Shortcuts or Spotlight.
+    
+    #if !WIDGET_EXTENSION
+    private let intent = RefreshAllAppsIntent(presentsNotifications: true)
+    #endif
+    
+    func perform() async throws -> some IntentResult & ProvidesDialog
+    {
+    #if WIDGET_EXTENSION
+        return .result(dialog: "")
+    #else
+        return try await self.intent.perform()
+    #endif
+    }
+}
+
+// To ensure this intent is handled by the app itself (and not widget extension)
+// we need to conform to either `ForegroundContinuableIntent` or `AudioPlaybackIntent`.
+// https://mastodon.social/@mgorbach/110812347476671807
+//
+// Unfortunately `ForegroundContinuableIntent` is marked as unavailable in app extensions,
+// so we conform to AudioPlaybackIntent instead despite not playing audio ¯\_(ツ)_/¯
+@available(iOS 17, *)
+extension RefreshAllAppsWidgetIntent: AudioPlaybackIntent {}