Move configure tab to submenu and use ajax

includes/admin/class-sp-admin-ajax.php

@@ -0,0 +1,39 @@
+<?php
+if ( ! defined( 'ABSPATH' ) ) {
+	exit; // Exit if accessed directly
+}
+
+/**
+ * SportsPress Admin.
+ *
+ * @class 		SP_Admin_AJAX
+ * @author 		ThemeBoy
+ * @category 	Admin
+ * @package 	SportsPress/Admin
+ * @version     1.3
+ */
+class SP_Admin_AJAX {
+
+	/**
+	 * Constructor
+	 */
+	public function __construct() {
+		add_action( 'wp_ajax_sp-save-primary-result', array( $this, 'save_primary_result' ), 1 );
+	}
+
+	/**
+	 * Auto-save the selected primary result.
+	 *
+	 * @since  1.3
+	 */
+	function save_primary_result() {
+		check_ajax_referer( 'sp-save-primary-result', 'nonce' );
+
+		$primary_result = sanitize_key( $_POST['primary_result'] );
+
+		update_option( 'sportspress_primary_result', $primary_result );
+		wp_send_json_success();
+	}
+}
+
+return new SP_Admin_AJAX();