Card readings just need to remove the notification

No need to broadcast everything again

app/controllers/cards/readings_controller.rb

@@ -2,7 +2,7 @@ class Cards::ReadingsController < ApplicationController
   include CardScoped
 
   def create
-    Current.user.notifications.unread.where(card: @card).read_all
-    @notifications = Current.user.notifications.unread.ordered.limit(20)
+    @notification = Current.user.notifications.find_by(card: @card)
+    @notification.read
   end
 end

app/views/cards/readings/create.turbo_stream.erb

@@ -1,3 +1 @@
-<%= turbo_stream.update "notifications" do %>
-  <%= render collection: @notifications, partial: "notifications/notification" %>
-<% end %>
+<%= turbo_stream.remove @notification %>