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/Event/ConsoleEvent.php

@@ -1,61 +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\Event;
-
-use Symfony\Component\Console\Command\Command;
-use Symfony\Component\Console\Input\InputInterface;
-use Symfony\Component\Console\Output\OutputInterface;
-use Symfony\Contracts\EventDispatcher\Event;
-
-/**
- * Allows to inspect input and output of a command.
- *
- * @author Francesco Levorato <git@flevour.net>
- */
-class ConsoleEvent extends Event
-{
-    protected $command;
-
-    private InputInterface $input;
-    private OutputInterface $output;
-
-    public function __construct(?Command $command, InputInterface $input, OutputInterface $output)
-    {
-        $this->command = $command;
-        $this->input = $input;
-        $this->output = $output;
-    }
-
-    /**
-     * Gets the command that is executed.
-     */
-    public function getCommand(): ?Command
-    {
-        return $this->command;
-    }
-
-    /**
-     * Gets the input instance.
-     */
-    public function getInput(): InputInterface
-    {
-        return $this->input;
-    }
-
-    /**
-     * Gets the output instance.
-     */
-    public function getOutput(): OutputInterface
-    {
-        return $this->output;
-    }
-}