some fix

app/themes/custom/assets/CustomThemesAssets.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace app\themes\custom\assets;
+
+use kernel\Assets;
+
+class CustomThemesAssets extends Assets
+{
+    protected function createCSS(): void
+    {
+        $this->registerCSS(slug: "main", resource: "/css/styles.css");
+    }
+
+    protected function createJS(): void
+    {
+        $this->registerJS(slug: "webpack", resource: "/js/scripts.js");
+    }
+}