Import latest app updates from streamline

An updated set of source files and initialization was provided by streamline to
address issues observed during initial testing. These files have been updated in
order to generate a new set of app images.

docker/streamline-src/vendor/symfony/translation/MetadataAwareInterface.php

@@ -1,48 +0,0 @@
-<?php
-
-/*
- * This file is part of the Symfony package.
- *
- * (c) Fabien Potencier <fabien@symfony.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-namespace Symfony\Component\Translation;
-
-/**
- * This interface is used to get, set, and delete metadata about the translation messages.
- *
- * @author Fabien Potencier <fabien@symfony.com>
- */
-interface MetadataAwareInterface
-{
-    /**
-     * Gets metadata for the given domain and key.
-     *
-     * Passing an empty domain will return an array with all metadata indexed by
-     * domain and then by key. Passing an empty key will return an array with all
-     * metadata for the given domain.
-     *
-     * @return mixed The value that was set or an array with the domains/keys or null
-     */
-    public function getMetadata(string $key = '', string $domain = 'messages'): mixed;
-
-    /**
-     * Adds metadata to a message domain.
-     *
-     * @return void
-     */
-    public function setMetadata(string $key, mixed $value, string $domain = 'messages');
-
-    /**
-     * Deletes metadata for the given key and domain.
-     *
-     * Passing an empty domain will delete all metadata. Passing an empty key will
-     * delete all metadata for the given domain.
-     *
-     * @return void
-     */
-    public function deleteMetadata(string $key = '', string $domain = 'messages');
-}