Add top navigation

lib/music_library_web/live/record_live/index.ex

@@ -25,6 +25,7 @@ defmodule MusicLibraryWeb.RecordLive.Index do
 
     {:ok,
      socket
+     |> assign(:nav_section, :records)
      |> assign(:record_list_params, record_list_params)
      |> stream(:records, records)}
   end

lib/music_library_web/live/record_live/show.ex

@@ -12,6 +12,7 @@ defmodule MusicLibraryWeb.RecordLive.Show do
   def handle_params(%{"id" => id}, _, socket) do
     {:noreply,
      socket
+     |> assign(:nav_section, :records)
      |> assign(:page_title, page_title(socket.assigns.live_action))
      |> assign(:record, Records.get_record!(id))}
   end