create and delete notification for a project working

public/site/plugins/notifications/routes/delete.php

@@ -0,0 +1,20 @@
+<?php
+
+return [
+  'pattern' => '(:all)delete-user-notification.json',
+  'method' => 'POST',
+  'action'  => function () {
+      $json = file_get_contents('php://input');
+      $data = json_decode($json);
+      
+      try {
+        kirby()->user()->deleteNotification($data->notificationId);
+        return json_encode([
+          "status" => "success",
+          "message" => "Notification n°{$data->notificationId} correctly deleted for all \"{$$project->title()}\" managers."
+        ]);
+      } catch (\Throwable $th) {
+        return json_encode($th->getMessage() . ' line ' . $th->getLine());
+      }
+  }
+];