Add top navigation

lib/music_library_web/components/layouts.ex

@@ -11,4 +11,13 @@ defmodule MusicLibraryWeb.Layouts do
   use MusicLibraryWeb, :html
 
   embed_templates "layouts/*"
+
+  @base_classes "inline-flex items-center border-b-2 px-1 pt-1 text-sm font-medium"
+  def nav_link_class(current_section, section) when current_section == section do
+    [@base_classes, "border-zinc-500 text-gray-900"]
+  end
+
+  def nav_link_class(_current_section, _section) do
+    [@base_classes, "border-transparent text-gray-500 hover:border-gray-300 hover:text-gray-700"]
+  end
 end