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/league/flysystem/src/UnableToGeneratePublicUrl.php

@@ -1,26 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace League\Flysystem;
-
-use RuntimeException;
-use Throwable;
-
-final class UnableToGeneratePublicUrl extends RuntimeException implements FilesystemException
-{
-    public function __construct(string $reason, string $path, ?Throwable $previous = null)
-    {
-        parent::__construct("Unable to generate public url for $path: $reason", 0, $previous);
-    }
-
-    public static function dueToError(string $path, Throwable $exception): static
-    {
-        return new static($exception->getMessage(), $path, $exception);
-    }
-
-    public static function noGeneratorConfigured(string $path, string $extraReason = ''): static
-    {
-        return new static('No generator was configured ' . $extraReason, $path);
-    }
-}