Build modified streamline images

The official image from streamline does not currently work for the arm64
platform. As a temporary measure, the source code and docker build scripts
have been lifted from the official images and are used to build locally.

Some additional modifications are made to reduce overall image size, these
are documented in docker/README.md

docker/streamline-src/vendor/symfony/translation/Loader/FileLoader.php

@@ -0,0 +1,57 @@
+<?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\Translation\Loader;
+
+use Symfony\Component\Config\Resource\FileResource;
+use Symfony\Component\Translation\Exception\InvalidResourceException;
+use Symfony\Component\Translation\Exception\NotFoundResourceException;
+use Symfony\Component\Translation\MessageCatalogue;
+
+/**
+ * @author Abdellatif Ait boudad <a.aitboudad@gmail.com>
+ */
+abstract class FileLoader extends ArrayLoader
+{
+    public function load(mixed $resource, string $locale, string $domain = 'messages'): MessageCatalogue
+    {
+        if (!stream_is_local($resource)) {
+            throw new InvalidResourceException(sprintf('This is not a local file "%s".', $resource));
+        }
+
+        if (!file_exists($resource)) {
+            throw new NotFoundResourceException(sprintf('File "%s" not found.', $resource));
+        }
+
+        $messages = $this->loadResource($resource);
+
+        // empty resource
+        $messages ??= [];
+
+        // not an array
+        if (!\is_array($messages)) {
+            throw new InvalidResourceException(sprintf('Unable to load file "%s".', $resource));
+        }
+
+        $catalogue = parent::load($messages, $locale, $domain);
+
+        if (class_exists(FileResource::class)) {
+            $catalogue->addResource(new FileResource($resource));
+        }
+
+        return $catalogue;
+    }
+
+    /**
+     * @throws InvalidResourceException if stream content has an invalid format
+     */
+    abstract protected function loadResource(string $resource): array;
+}