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/routing/Exception/MethodNotAllowedException.php

@@ -1,44 +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\Routing\Exception;
-
-/**
- * The resource was found but the request method is not allowed.
- *
- * This exception should trigger an HTTP 405 response in your application code.
- *
- * @author Kris Wallsmith <kris@symfony.com>
- */
-class MethodNotAllowedException extends \RuntimeException implements ExceptionInterface
-{
-    protected $allowedMethods = [];
-
-    /**
-     * @param string[] $allowedMethods
-     */
-    public function __construct(array $allowedMethods, string $message = '', int $code = 0, ?\Throwable $previous = null)
-    {
-        $this->allowedMethods = array_map('strtoupper', $allowedMethods);
-
-        parent::__construct($message, $code, $previous);
-    }
-
-    /**
-     * Gets the allowed HTTP methods.
-     *
-     * @return string[]
-     */
-    public function getAllowedMethods(): array
-    {
-        return $this->allowedMethods;
-    }
-}