API: Added dummy endpoint for featured tags

src/Module/Api/Mastodon/Accounts/FeaturedTags.php

@@ -0,0 +1,42 @@
+<?php
+/**
+ * @copyright Copyright (C) 2010-2021, the Friendica project
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace Friendica\Module\Api\Mastodon\Accounts;
+
+use Friendica\Core\System;
+use Friendica\Module\BaseApi;
+
+/**
+ * @see https://docs.joinmastodon.org/methods/accounts/
+ */
+class FeaturedTags extends BaseApi
+{
+	/**
+	 * @param array $parameters
+	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
+	 */
+	public static function rawContent(array $parameters = [])
+	{
+		self::checkAllowedScope(self::SCOPE_READ);
+
+		System::jsonExit([]);
+	}
+}

static/routes.config.php

@@ -60,7 +60,7 @@ return [
 			'/accounts'                          => [Module\Api\Mastodon\Unimplemented::class,            [        R::POST]], // not supported
 			'/accounts/{id:\d+}'                 => [Module\Api\Mastodon\Accounts::class,                 [R::GET         ]],
 			'/accounts/{id:\d+}/statuses'        => [Module\Api\Mastodon\Accounts\Statuses::class,        [R::GET         ]],
-			'/accounts/{id:\d+}/featured_tags'   => [Module\Api\Mastodon\Unimplemented::class,            [R::GET         ]], // @todo
+			'/accounts/{id:\d+}/featured_tags'   => [Module\Api\Mastodon\Accounts\FeaturedTags::class,    [R::GET         ]], // Dummy, not supported
 			'/accounts/{id:\d+}/followers'       => [Module\Api\Mastodon\Accounts\Followers::class,       [R::GET         ]],
 			'/accounts/{id:\d+}/following'       => [Module\Api\Mastodon\Accounts\Following::class,       [R::GET         ]],
 			'/accounts/{id:\d+}/lists'           => [Module\Api\Mastodon\Accounts\Lists::class,           [R::GET         ]],