Add delete task functionality (#72)

closes #62

Reviewed-on: #72

frontend/allowance-planner-v2/src/app/pages/tasks/tasks.page.ts

@@ -32,7 +32,7 @@ export class TasksPage implements ViewWillEnter {
       this.taskService.getTaskList().subscribe(tasks => {
         this.tasks$.next(tasks);
       });
-    }, 1)
+    }, 10);
   }
 
   createTask() {