Feature: Add web push notification permission in frontend (#766)

Add webpush notification permission in frontend

Co-authored-by: Sojan <sojan@pepalo.com>

spec/factories/notification_subscriptions.rb

@@ -0,0 +1,10 @@
+# frozen_string_literal: true
+
+FactoryBot.define do
+  factory :notification_subscription do
+    user
+    identifier { 'test' }
+    subscription_type { 'browser_push' }
+    subscription_attributes { { endpoint: 'test', auth: 'test' } }
+  end
+end