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/Loader/JsonFileLoader.php

@@ -1,51 +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\Loader;
-
-use Symfony\Component\Translation\Exception\InvalidResourceException;
-
-/**
- * JsonFileLoader loads translations from an json file.
- *
- * @author singles
- */
-class JsonFileLoader extends FileLoader
-{
-    protected function loadResource(string $resource): array
-    {
-        $messages = [];
-        if ($data = file_get_contents($resource)) {
-            $messages = json_decode($data, true);
-
-            if (0 < $errorCode = json_last_error()) {
-                throw new InvalidResourceException('Error parsing JSON: '.$this->getJSONErrorMessage($errorCode));
-            }
-        }
-
-        return $messages;
-    }
-
-    /**
-     * Translates JSON_ERROR_* constant into meaningful message.
-     */
-    private function getJSONErrorMessage(int $errorCode): string
-    {
-        return match ($errorCode) {
-            \JSON_ERROR_DEPTH => 'Maximum stack depth exceeded',
-            \JSON_ERROR_STATE_MISMATCH => 'Underflow or the modes mismatch',
-            \JSON_ERROR_CTRL_CHAR => 'Unexpected control character found',
-            \JSON_ERROR_SYNTAX => 'Syntax error, malformed JSON',
-            \JSON_ERROR_UTF8 => 'Malformed UTF-8 characters, possibly incorrectly encoded',
-            default => 'Unknown error',
-        };
-    }
-}