Add own admin page for the plugin

conf/metadata.php

@@ -2,19 +2,10 @@
 
 /**
  * Metadata for configuration manager plugin
- * Additions for the luxtools plugin
  *
- * @author Gina Haeussge <osd@foosel.net>
+ * NOTE: luxtools settings are managed via the plugin's dedicated admin page
+ * (Admin -> Additional Plugins). Therefore, we intentionally do not expose
+ * any settings to the Configuration Manager.
  */
 
-$meta['paths'] = array('');
-$meta['allow_in_comments'] = array('onoff');
-$meta['defaults'] = array('string');
-$meta['extensions'] = array('string');
-
-$meta['thumb_placeholder'] = array('string');
-
-// Thumbnail generation scale factor for the {{images>...}} gallery.
-$meta['gallery_thumb_scale'] = array('string');
-
-$meta['open_service_url'] = array('string');
+$meta = [];