appletManager.js: Fix typo.

Author: mtwebster

js/ui/appletManager.js

@@ -352,7 +352,7 @@ function _removeAppletConfigFile(uuid, instanceId) {
     ];
 
     for (let i = 0; i < config_paths.length; i++) {
-        const config_path = array[i];
+        const config_path = config_paths[i];
         let file = Gio.File.new_for_path(config_path);
         if (file.query_exists(null)) {
             try {