[#819] Fix Admin Grant Free Bids from Network Admin (#821)

* [#819] Fix Network Admin Grant Free Bids

* [#819] Allow AJAX call inside Network Admin

* [#819] Remove debug logging

client-mu-plugins/goodbids/src/assets/js/admin-free-bids.js

@@ -6,6 +6,10 @@ const $ = jQuery;
 
 $(() => {
 	const grantFreeBidButton = $('#goodbids-grant-free-bid-button');
+	if (!grantFreeBidButton.length) {
+		return;
+	}
+
 	grantFreeBidButton.attr('disabled', true); // disable by default
 	const freeBidReason = $('#' + goodbidsFreeBids.reasonFieldId);
 	freeBidReason.on('keyup', function () {

client-mu-plugins/goodbids/src/classes/Users/FreeBids.php

@@ -65,17 +65,18 @@ class FreeBids {
 	 * @since 1.0.0
 	 */
 	public function __construct() {
+
+		// Handle Free Bid via AJAX.
+		$this->grant_free_bid_ajax();
+
 		// Disable Free Bids on Main Site.
-		if ( is_main_site() ) {
+		if ( is_main_site() && ! is_network_admin() ) {
 			return;
 		}
 
 		// Add UI for Super Admins to grant free bids to users.
 		$this->free_bid_user_fields();
 
-		// Handle Free Bid via AJAX.
-		$this->grant_free_bid_ajax();
-
 		// Set up JS Vars.
 		$this->free_bid_js_vars();
 	}
@@ -130,7 +131,7 @@ function ( $handle ) {
 							'title' => __( 'Success!', 'goodbids' ),
 							'text'  => __( 'The free bid was successfully granted.', 'goodbids' ),
 						],
-						'grantAction'     => 'goodbids_admin_grant_free_bid',
+						'grantAction'     => 'goodbids_' . self::NONCE_ACTION,
 						'nonceGrant'      => wp_create_nonce( self::NONCE_ACTION ),
 					]
 				);
@@ -147,7 +148,7 @@ function ( $handle ) {
 	 */
 	private function grant_free_bid_ajax(): void {
 		add_action(
-			'wp_ajax_goodbids_admin_grant_free_bid',
+			'wp_ajax_goodbids_' . self::NONCE_ACTION,
 			function () {
 				list( $user_id, $reason ) = $this->ajax_request_validation();