Feat: Fügt die Möglichkeit hinzu, einen Hintergrundtask sofort auszuführen

lib/Controller/background_task_controller.dart

@@ -3,6 +3,7 @@ import 'dart:io';
 
 import 'package:flutter/foundation.dart';
 import 'package:isolate_manager/isolate_manager.dart';
+import 'package:uuid/uuid.dart';
 import 'package:workmanager/workmanager.dart';
 
 import '../Tasks/BackgroundHandler/workers.dart';
@@ -50,4 +51,18 @@ class BackgroundTaskController {
       }
     }
   }
+
+  /// Führt den angegebenen Task sofort aus.
+  static Future<void> run(final String taskName) async {
+    if (!kIsWeb && Platform.isAndroid) {
+      final String uuid = const Uuid().v4();
+      unawaited(Workmanager().registerOneOffTask('$taskName-$uuid', taskName));
+    } else {
+      unawaited(IsolateManager.runFunction(runTask, {
+        'taskName': taskName,
+        'initialDelayMinutes': 0,
+        'frequencyMinutes': 0,
+      }));
+    }
+  }
 }