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/http-kernel/HttpCache/SurrogateInterface.php

@@ -1,77 +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\HttpKernel\HttpCache;
-
-use Symfony\Component\HttpFoundation\Request;
-use Symfony\Component\HttpFoundation\Response;
-
-interface SurrogateInterface
-{
-    /**
-     * Returns surrogate name.
-     */
-    public function getName(): string;
-
-    /**
-     * Returns a new cache strategy instance.
-     */
-    public function createCacheStrategy(): ResponseCacheStrategyInterface;
-
-    /**
-     * Checks that at least one surrogate has Surrogate capability.
-     */
-    public function hasSurrogateCapability(Request $request): bool;
-
-    /**
-     * Adds Surrogate-capability to the given Request.
-     *
-     * @return void
-     */
-    public function addSurrogateCapability(Request $request);
-
-    /**
-     * Adds HTTP headers to specify that the Response needs to be parsed for Surrogate.
-     *
-     * This method only adds an Surrogate HTTP header if the Response has some Surrogate tags.
-     *
-     * @return void
-     */
-    public function addSurrogateControl(Response $response);
-
-    /**
-     * Checks that the Response needs to be parsed for Surrogate tags.
-     */
-    public function needsParsing(Response $response): bool;
-
-    /**
-     * Renders a Surrogate tag.
-     *
-     * @param string|null $alt     An alternate URI
-     * @param string      $comment A comment to add as an esi:include tag
-     */
-    public function renderIncludeTag(string $uri, ?string $alt = null, bool $ignoreErrors = true, string $comment = ''): string;
-
-    /**
-     * Replaces a Response Surrogate tags with the included resource content.
-     */
-    public function process(Request $request, Response $response): Response;
-
-    /**
-     * Handles a Surrogate from the cache.
-     *
-     * @param string $alt An alternative URI
-     *
-     * @throws \RuntimeException
-     * @throws \Exception
-     */
-    public function handle(HttpCache $cache, string $uri, string $alt, bool $ignoreErrors): string;
-}