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/guzzlehttp/psr7/src/UriComparator.php

@@ -1,52 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace GuzzleHttp\Psr7;
-
-use Psr\Http\Message\UriInterface;
-
-/**
- * Provides methods to determine if a modified URL should be considered cross-origin.
- *
- * @author Graham Campbell
- */
-final class UriComparator
-{
-    /**
-     * Determines if a modified URL should be considered cross-origin with
-     * respect to an original URL.
-     */
-    public static function isCrossOrigin(UriInterface $original, UriInterface $modified): bool
-    {
-        if (\strcasecmp($original->getHost(), $modified->getHost()) !== 0) {
-            return true;
-        }
-
-        if ($original->getScheme() !== $modified->getScheme()) {
-            return true;
-        }
-
-        if (self::computePort($original) !== self::computePort($modified)) {
-            return true;
-        }
-
-        return false;
-    }
-
-    private static function computePort(UriInterface $uri): int
-    {
-        $port = $uri->getPort();
-
-        if (null !== $port) {
-            return $port;
-        }
-
-        return 'https' === $uri->getScheme() ? 443 : 80;
-    }
-
-    private function __construct()
-    {
-        // cannot be instantiated
-    }
-}