Federated Reply: Use Core Embed block (#2129)

Author: obenland

.github/changelog/2129-from-description

@@ -0,0 +1,4 @@
+Significance: minor
+Type: changed
+
+Refactored Reply block to use WordPress core embed functionality for better compatibility and performance.

.prettierignore

@@ -7,5 +7,4 @@ vendor
 
 # Temporary ignores while breaking out each component.
 assets
-src/reply
 src/reply-intent

activitypub.php

@@ -55,7 +55,6 @@ function rest_init() {
 	( new Rest\Outbox_Controller() )->register_routes();
 	( new Rest\Post_Controller() )->register_routes();
 	( new Rest\Replies_Controller() )->register_routes();
-	( new Rest\URL_Validator_Controller() )->register_routes();
 	( new Rest\Webfinger_Controller() )->register_routes();
 
 	// Load NodeInfo endpoints only if blog is public.

build/reply/block.json

@@ -11,7 +11,12 @@
     "html": false,
     "inserter": true,
     "reusable": false,
-    "lock": false
+    "lock": false,
+    "innerBlocks": {
+      "allowedBlocks": [
+        "core/embed"
+      ]
+    }
   },
   "textdomain": "activitypub",
   "editorScript": "file:./index.js",

build/reply/index.asset.php

@@ -1 +1 @@
-<?php return array('dependencies' => array('react', 'wp-api-fetch', 'wp-block-editor', 'wp-blocks', 'wp-components', 'wp-compose', 'wp-data', 'wp-element', 'wp-i18n', 'wp-primitives', 'wp-url'), 'version' => 'e4cc0f6ffd681f4d678d');
+<?php return array('dependencies' => array('react', 'wp-api-fetch', 'wp-block-editor', 'wp-blocks', 'wp-components', 'wp-compose', 'wp-data', 'wp-element', 'wp-i18n', 'wp-primitives', 'wp-url'), 'version' => 'b24c13a1511313a54eb6');

build/reply/index.js

@@ -255,6 +255,7 @@ public static function render_reply_block( $attrs ) {
 			$embed = wp_oembed_get( $attrs['url'] );
 			if ( $embed ) {
 				$html .= $embed;
+				\wp_enqueue_script( 'wp-embed' );
 			}
 		}
 
@@ -301,7 +302,7 @@ class="activitypub-modal__overlay<?php echo \esc_attr( $args['is_compact'] ? ' c
 			<div class="activitypub-modal__frame">
 				<?php if ( ! $args['is_compact'] || ! empty( $args['title'] ) ) : ?>
 					<div class="activitypub-modal__header">
-						<h2 
+						<h2
 							class="activitypub-modal__title"
 							<?php if ( ! empty( $args['id'] ) ) : ?>
 								id="<?php echo \esc_attr( $args['id'] . '-title' ); ?>"