Broadcast notifications that are deleted

To prevent 404s when someone doesn't refresh the page

app/models/notification.rb

@@ -10,6 +10,7 @@ class Notification < ApplicationRecord
   scope :ordered, -> { order(read_at: :desc, created_at: :desc) }
 
   after_create_commit :broadcast_unread
+  after_destroy_commit :broadcast_read
   after_create :bundle
 
   delegate :notifiable_target, to: :source

test/models/notification_test.rb

@@ -38,4 +38,13 @@ class NotificationTest < ActiveSupport::TestCase
       notification.read
     end
   end
+
+  test "deleting notification broadcasts its removal" do
+    notification = notifications(:logo_published_kevin)
+    notification.update!(read_at: nil)
+
+    assert_turbo_stream_broadcasts([ notification.user, :notifications ], count: 1) do
+      notification.destroy
+    end
+  end
 end