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/DataCollectorTranslator.php

@@ -0,0 +1,143 @@
+<?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;
+
+use Symfony\Component\HttpKernel\CacheWarmer\WarmableInterface;
+use Symfony\Component\Translation\Exception\InvalidArgumentException;
+use Symfony\Contracts\Translation\LocaleAwareInterface;
+use Symfony\Contracts\Translation\TranslatorInterface;
+
+/**
+ * @author Abdellatif Ait boudad <a.aitboudad@gmail.com>
+ */
+class DataCollectorTranslator implements TranslatorInterface, TranslatorBagInterface, LocaleAwareInterface, WarmableInterface
+{
+    public const MESSAGE_DEFINED = 0;
+    public const MESSAGE_MISSING = 1;
+    public const MESSAGE_EQUALS_FALLBACK = 2;
+
+    private TranslatorInterface $translator;
+    private array $messages = [];
+
+    /**
+     * @param TranslatorInterface&TranslatorBagInterface&LocaleAwareInterface $translator
+     */
+    public function __construct(TranslatorInterface $translator)
+    {
+        if (!$translator instanceof TranslatorBagInterface || !$translator instanceof LocaleAwareInterface) {
+            throw new InvalidArgumentException(sprintf('The Translator "%s" must implement TranslatorInterface, TranslatorBagInterface and LocaleAwareInterface.', get_debug_type($translator)));
+        }
+
+        $this->translator = $translator;
+    }
+
+    public function trans(?string $id, array $parameters = [], ?string $domain = null, ?string $locale = null): string
+    {
+        $trans = $this->translator->trans($id = (string) $id, $parameters, $domain, $locale);
+        $this->collectMessage($locale, $domain, $id, $trans, $parameters);
+
+        return $trans;
+    }
+
+    /**
+     * @return void
+     */
+    public function setLocale(string $locale)
+    {
+        $this->translator->setLocale($locale);
+    }
+
+    public function getLocale(): string
+    {
+        return $this->translator->getLocale();
+    }
+
+    public function getCatalogue(?string $locale = null): MessageCatalogueInterface
+    {
+        return $this->translator->getCatalogue($locale);
+    }
+
+    public function getCatalogues(): array
+    {
+        return $this->translator->getCatalogues();
+    }
+
+    public function warmUp(string $cacheDir, ?string $buildDir = null): array
+    {
+        if ($this->translator instanceof WarmableInterface) {
+            return (array) $this->translator->warmUp($cacheDir, $buildDir);
+        }
+
+        return [];
+    }
+
+    /**
+     * Gets the fallback locales.
+     */
+    public function getFallbackLocales(): array
+    {
+        if ($this->translator instanceof Translator || method_exists($this->translator, 'getFallbackLocales')) {
+            return $this->translator->getFallbackLocales();
+        }
+
+        return [];
+    }
+
+    /**
+     * @return mixed
+     */
+    public function __call(string $method, array $args)
+    {
+        return $this->translator->{$method}(...$args);
+    }
+
+    public function getCollectedMessages(): array
+    {
+        return $this->messages;
+    }
+
+    private function collectMessage(?string $locale, ?string $domain, string $id, string $translation, ?array $parameters = []): void
+    {
+        $domain ??= 'messages';
+
+        $catalogue = $this->translator->getCatalogue($locale);
+        $locale = $catalogue->getLocale();
+        $fallbackLocale = null;
+        if ($catalogue->defines($id, $domain)) {
+            $state = self::MESSAGE_DEFINED;
+        } elseif ($catalogue->has($id, $domain)) {
+            $state = self::MESSAGE_EQUALS_FALLBACK;
+
+            $fallbackCatalogue = $catalogue->getFallbackCatalogue();
+            while ($fallbackCatalogue) {
+                if ($fallbackCatalogue->defines($id, $domain)) {
+                    $fallbackLocale = $fallbackCatalogue->getLocale();
+                    break;
+                }
+                $fallbackCatalogue = $fallbackCatalogue->getFallbackCatalogue();
+            }
+        } else {
+            $state = self::MESSAGE_MISSING;
+        }
+
+        $this->messages[] = [
+            'locale' => $locale,
+            'fallbackLocale' => $fallbackLocale,
+            'domain' => $domain,
+            'id' => $id,
+            'translation' => $translation,
+            'parameters' => $parameters,
+            'state' => $state,
+            'transChoiceNumber' => isset($parameters['%count%']) && is_numeric($parameters['%count%']) ? $parameters['%count%'] : null,
+        ];
+    }
+}