Sort backups newest to oldest (#2624)

Viewing the backup list produces a seemingly random list.

This PR sorts the files newest to oldest.

app/Http/Controllers/SettingsController.php

@@ -482,7 +482,7 @@ class SettingsController extends Controller
 
             }
             closedir($handle);
-            $files = array_reverse($files);
+            rsort($files)
         }