Show widget details in REST API to allow Legacy Widget block usage

Author: dshanske

includes/class-hcard-author-widget.php

@@ -18,6 +18,7 @@ public function __construct() {
 			array(
 				'classname'   => 'hcard_widget',
 				'description' => __( 'A widget that allows you to display author profile marked up as an h-card', 'indieweb' ),
+				'show_instance_in_rest' => true,
 			)
 		);
 	} // end constructor

includes/class-relme-widget.php

@@ -14,6 +14,7 @@ public function __construct() {
 			__( 'Show My Profiles on Other Sites', 'indieweb' ),
 			array(
 				'description' => __( 'Adds automatic rel-me URLs based on default author profile information. Rel=me links are links to your presence on other websites and visually appear like many social link widgets', 'indieweb' ),
+				'show_instance_in_rest' => true,
 			)
 		);
 		if ( ! is_active_widget( false, false, $this->id_base ) ) {