Update main.php for ext bulk_add_csv

I honestly have no idea what I was doing with this one. Changes courtesy of ChatGPT. They appear to work whereas before I was receiving an error. ChatGPT thought it was cut-and-dry and that this still follows the goals of alpha.

Author: Miyuutsu

ext/bulk_add_csv/main.php

@@ -102,7 +102,7 @@ private function add_csv(Path $csvfile): void
             $list .= "<br>".html_escape("$shortpath (".implode(", ", $tags).")... ");
             if (file_exists($csvdata[0]) && is_file($csvdata[0])) {
                 try {
-                    $this->add_image($fullpath, $shortpath, $tags, $source, $rating, $thumbfile);
+                    $this->add_image(new Path($fullpath), $shortpath, $tags, $source, $rating, new Path($thumbfile));
                     $list .= "ok\n";
                 } catch (\Exception $ex) {
                     $list .= "failed:<br>". $ex->getMessage();