Add live title

Author: cruessler

lib/ex_rss_web/components/layouts/root.html.heex

@@ -4,8 +4,9 @@
     <meta charset="utf-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1" />
     <meta name="csrf-token" content={get_csrf_token()} />
-
-    <title>Hello ExRss!</title>
+    <.live_title>
+      {assigns[:page_title] || "ExRss"}
+    </.live_title>
     <link phx-track-static rel="stylesheet" href={~p"/assets/app.css"} />
     <script defer phx-track-static type="text/javascript" src={~p"/assets/app.js"}>
     </script>

lib/ex_rss_web/feed_live/index.ex

@@ -68,6 +68,7 @@ defmodule ExRssWeb.FeedLive.Index do
       feeds |> Enum.count(& &1.has_error)
 
     socket
+    |> assign(:page_title, "#{number_of_unread_entries} unread")
     |> assign(:oldest_unread_entry, oldest_unread_entry)
     |> assign(:number_of_unread_entries, number_of_unread_entries)
     |> assign(:number_of_read_entries, number_of_read_entries)