feat: add PanelSetting to the dash panel

app/Helper/ArrayHelper.php

@@ -0,0 +1,14 @@
+<?php
+
+namespace App\Helper;
+
+class ArrayHelper
+{
+    /**
+     * Get value from array by key, return null if not found.
+     */
+    public static function getValueFromArray(string $key, array $array)
+    {
+        return $array[$key] ?? null;
+    }
+}