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/var-dumper/Resources/bin/var-dump-server

@@ -1,67 +0,0 @@
-#!/usr/bin/env php
-<?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.
- */
-
-if ('cli' !== PHP_SAPI) {
-    throw new Exception('This script must be run from the command line.');
-}
-
-/**
- * Starts a dump server to collect and output dumps on a single place with multiple formats support.
- *
- * @author Maxime Steinhausser <maxime.steinhausser@gmail.com>
- */
-
-use Psr\Log\LoggerInterface;
-use Symfony\Component\Console\Application;
-use Symfony\Component\Console\Input\ArgvInput;
-use Symfony\Component\Console\Input\InputOption;
-use Symfony\Component\Console\Logger\ConsoleLogger;
-use Symfony\Component\Console\Output\ConsoleOutput;
-use Symfony\Component\VarDumper\Command\ServerDumpCommand;
-use Symfony\Component\VarDumper\Server\DumpServer;
-
-function includeIfExists(string $file): bool
-{
-    return file_exists($file) && include $file;
-}
-
-if (
-    !includeIfExists(__DIR__ . '/../../../../autoload.php') &&
-    !includeIfExists(__DIR__ . '/../../vendor/autoload.php') &&
-    !includeIfExists(__DIR__ . '/../../../../../../vendor/autoload.php')
-) {
-    fwrite(STDERR, 'Install dependencies using Composer.'.PHP_EOL);
-    exit(1);
-}
-
-if (!class_exists(Application::class)) {
-    fwrite(STDERR, 'You need the "symfony/console" component in order to run the VarDumper server.'.PHP_EOL);
-    exit(1);
-}
-
-$input = new ArgvInput();
-$output = new ConsoleOutput();
-$defaultHost = '127.0.0.1:9912';
-$host = $input->getParameterOption(['--host'], $_SERVER['VAR_DUMPER_SERVER'] ?? $defaultHost, true);
-$logger = interface_exists(LoggerInterface::class) ? new ConsoleLogger($output->getErrorOutput()) : null;
-
-$app = new Application();
-
-$app->getDefinition()->addOption(
-    new InputOption('--host', null, InputOption::VALUE_REQUIRED, 'The address the server should listen to', $defaultHost)
-);
-
-$app->add($command = new ServerDumpCommand(new DumpServer($host, $logger)))
-    ->getApplication()
-    ->setDefaultCommand($command->getName(), true)
-    ->run($input, $output)
-;