✨ iOS background widget fetching

ios/Runner/AppDelegate.swift

@@ -1,6 +1,8 @@
 import Flutter
 import UIKit
 
+import workmanager
+
 @main
 @objc class AppDelegate: FlutterAppDelegate {
   override func application(
@@ -9,6 +11,12 @@ import UIKit
   ) -> Bool {
     GeneratedPluginRegistrant.register(with: self)
       
+    WorkmanagerPlugin.setPluginRegistrantCallback { registry in
+        GeneratedPluginRegistrant.register(with: registry)
+    }
+    
+    UIApplication.shared.setMinimumBackgroundFetchInterval(TimeInterval(60*5))
+      
     return super.application(application, didFinishLaunchingWithOptions: launchOptions)
   }
 }