title: How to send push notification on mobile app with capacitorJS without third party like firebase or onesignal
body: <p>I have an app in which I'm using sveltekit with static adapter to build a mobile application using CapacitorJS,
  I would like to send push notifications from the server to the client app but I don't want to use any third party like firebase, one signal etc, Please is there any means that would help, I read about service worker but not sure how it would work, thanks in advance</p>