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/DataCollector/TranslationDataCollector.php

@@ -0,0 +1,148 @@
+<?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\DataCollector;
+
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\HttpKernel\DataCollector\DataCollector;
+use Symfony\Component\HttpKernel\DataCollector\LateDataCollectorInterface;
+use Symfony\Component\Translation\DataCollectorTranslator;
+use Symfony\Component\VarDumper\Cloner\Data;
+
+/**
+ * @author Abdellatif Ait boudad <a.aitboudad@gmail.com>
+ *
+ * @final
+ */
+class TranslationDataCollector extends DataCollector implements LateDataCollectorInterface
+{
+    private DataCollectorTranslator $translator;
+
+    public function __construct(DataCollectorTranslator $translator)
+    {
+        $this->translator = $translator;
+    }
+
+    public function lateCollect(): void
+    {
+        $messages = $this->sanitizeCollectedMessages($this->translator->getCollectedMessages());
+
+        $this->data += $this->computeCount($messages);
+        $this->data['messages'] = $messages;
+
+        $this->data = $this->cloneVar($this->data);
+    }
+
+    public function collect(Request $request, Response $response, ?\Throwable $exception = null): void
+    {
+        $this->data['locale'] = $this->translator->getLocale();
+        $this->data['fallback_locales'] = $this->translator->getFallbackLocales();
+    }
+
+    public function reset(): void
+    {
+        $this->data = [];
+    }
+
+    public function getMessages(): array|Data
+    {
+        return $this->data['messages'] ?? [];
+    }
+
+    public function getCountMissings(): int
+    {
+        return $this->data[DataCollectorTranslator::MESSAGE_MISSING] ?? 0;
+    }
+
+    public function getCountFallbacks(): int
+    {
+        return $this->data[DataCollectorTranslator::MESSAGE_EQUALS_FALLBACK] ?? 0;
+    }
+
+    public function getCountDefines(): int
+    {
+        return $this->data[DataCollectorTranslator::MESSAGE_DEFINED] ?? 0;
+    }
+
+    public function getLocale(): ?string
+    {
+        return !empty($this->data['locale']) ? $this->data['locale'] : null;
+    }
+
+    /**
+     * @internal
+     */
+    public function getFallbackLocales(): Data|array
+    {
+        return (isset($this->data['fallback_locales']) && \count($this->data['fallback_locales']) > 0) ? $this->data['fallback_locales'] : [];
+    }
+
+    public function getName(): string
+    {
+        return 'translation';
+    }
+
+    private function sanitizeCollectedMessages(array $messages): array
+    {
+        $result = [];
+        foreach ($messages as $key => $message) {
+            $messageId = $message['locale'].$message['domain'].$message['id'];
+
+            if (!isset($result[$messageId])) {
+                $message['count'] = 1;
+                $message['parameters'] = !empty($message['parameters']) ? [$message['parameters']] : [];
+                $messages[$key]['translation'] = $this->sanitizeString($message['translation']);
+                $result[$messageId] = $message;
+            } else {
+                if (!empty($message['parameters'])) {
+                    $result[$messageId]['parameters'][] = $message['parameters'];
+                }
+
+                ++$result[$messageId]['count'];
+            }
+
+            unset($messages[$key]);
+        }
+
+        return $result;
+    }
+
+    private function computeCount(array $messages): array
+    {
+        $count = [
+            DataCollectorTranslator::MESSAGE_DEFINED => 0,
+            DataCollectorTranslator::MESSAGE_MISSING => 0,
+            DataCollectorTranslator::MESSAGE_EQUALS_FALLBACK => 0,
+        ];
+
+        foreach ($messages as $message) {
+            ++$count[$message['state']];
+        }
+
+        return $count;
+    }
+
+    private function sanitizeString(string $string, int $length = 80): string
+    {
+        $string = trim(preg_replace('/\s+/', ' ', $string));
+
+        if (false !== $encoding = mb_detect_encoding($string, null, true)) {
+            if (mb_strlen($string, $encoding) > $length) {
+                return mb_substr($string, 0, $length - 3, $encoding).'...';
+            }
+        } elseif (\strlen($string) > $length) {
+            return substr($string, 0, $length - 3).'...';
+        }
+
+        return $string;
+    }
+}