[Widgets]: [WIP]: Implement Pagination in ActiveAppWidget based on user interaction

AltWidget/Intents/PaginationIntent.swift

@@ -0,0 +1,46 @@
+//
+//  PaginationIntent.swift
+//  AltStore
+//
+//  Created by Magesh K on 08/01/25.
+//  Copyright © 2025 SideStore. All rights reserved.
+//
+
+import AppIntents
+import WidgetKit
+
+public enum Direction: String{
+    case up = "up"
+    case down = "down"
+}
+
+@available(iOS 17, *)
+struct PaginationIntent: AppIntent, @unchecked Sendable {
+    static var title: LocalizedStringResource { "Scroll up or down in Active Apps Widget" }
+    static var isDiscoverable: Bool { false }
+
+    @Parameter(title: "Direction")
+    var direction: String
+
+    @Parameter(title: "Widget Identifier")
+    var widgetID: String
+        
+    init(){}
+    
+    init(_ direction: Direction, _ widgetID: String){
+        self.direction = direction.rawValue
+        self.widgetID = widgetID
+    }
+
+    func perform() async throws -> some IntentResult {
+        let direction = Direction(rawValue: direction)!
+        guard let viewModel = PaginationViewModel.instance(widgetID) else{
+            print("viewModel for widgetID: \(widgetID) not found, ignoring request")
+            return .result()
+        }
+        viewModel.handlePagination(direction)
+        WidgetCenter.shared.reloadTimelines(ofKind: viewModel.widgetID)
+        return .result()
+    }
+}
+