Fix Theme/Plugin File Editor sidebar legibility in dark mode (v1.13)

Core sets an explicit light background on the shared #templateside > ul
file-tree component, which nothing in native-dark.css covered - combined
with this file's dark-surface text colors, that produced light text on
a light background rather than just unstyled.

aurora-admin.php

@@ -3,7 +3,7 @@
  * Plugin Name: Aurora Admin
  * Plugin URI: https://aurora.auroradragon.studio
  * Description: A modern, fast WordPress admin interface.
- * Version: 1.12
+ * Version: 1.13
  * Author: Aurora Dragon Studio
  * Author URI: https://auroradragon.studio
  * Text Domain: aurora-admin
@@ -15,7 +15,7 @@
 
 defined("ABSPATH") || exit();
 
-define("AURORA_ADMIN_VERSION", "1.12");
+define("AURORA_ADMIN_VERSION", "1.13");
 define("AURORA_ADMIN_PATH", plugin_dir_path(__FILE__));
 define("AURORA_ADMIN_URL", plugins_url("aurora-admin/"));