Make page titles consistent with application structure

- All existing pages get a nice title
- Suffix is "Music Library"
- Fallback is current request path

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

@@ -4,8 +4,8 @@
     <meta charset="utf-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1" />
     <meta name="csrf-token" content={get_csrf_token()} />
-    <.live_title suffix=" · Phoenix Framework">
-      <%= assigns[:page_title] || "MusicLibrary" %>
+    <.live_title suffix=" · Music Library">
+      <%= assigns[:page_title] || assigns.conn.request_path %>
     </.live_title>
     <link rel="preconnect" href="https://rsms.me/" />
     <link rel="stylesheet" href="https://rsms.me/inter/inter.css" />

lib/music_library_web/controllers/stats_controller.ex

@@ -15,7 +15,9 @@ defmodule MusicLibraryWeb.StatsController do
     records_count = Enum.reduce(records_count_by_format, 0, fn {_, count}, acc -> acc + count end)
     latest_record = Records.get_latest_record!()
 
-    render(conn, :index,
+    conn
+    |> assign(:page_title, "Stats")
+    |> render(:index,
       records_count_by_format: records_count_by_format,
       records_count_by_type: records_count_by_type,
       records_count: records_count,