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/console/CommandLoader/FactoryCommandLoader.php

@@ -1,54 +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\Console\CommandLoader;
-
-use Symfony\Component\Console\Command\Command;
-use Symfony\Component\Console\Exception\CommandNotFoundException;
-
-/**
- * A simple command loader using factories to instantiate commands lazily.
- *
- * @author Maxime Steinhausser <maxime.steinhausser@gmail.com>
- */
-class FactoryCommandLoader implements CommandLoaderInterface
-{
-    private array $factories;
-
-    /**
-     * @param callable[] $factories Indexed by command names
-     */
-    public function __construct(array $factories)
-    {
-        $this->factories = $factories;
-    }
-
-    public function has(string $name): bool
-    {
-        return isset($this->factories[$name]);
-    }
-
-    public function get(string $name): Command
-    {
-        if (!isset($this->factories[$name])) {
-            throw new CommandNotFoundException(sprintf('Command "%s" does not exist.', $name));
-        }
-
-        $factory = $this->factories[$name];
-
-        return $factory();
-    }
-
-    public function getNames(): array
-    {
-        return array_keys($this->factories);
-    }
-}