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/nunomaduro/termwind/src/Repositories/Styles.php

@@ -0,0 +1,59 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Termwind\Repositories;
+
+use Closure;
+use Termwind\ValueObjects\Style;
+use Termwind\ValueObjects\Styles as StylesValueObject;
+
+/**
+ * @internal
+ */
+final class Styles
+{
+    /**
+     * @var array<string, Style>
+     */
+    private static array $storage = [];
+
+    /**
+     * Creates a new style from the given arguments.
+     *
+     * @param (Closure(StylesValueObject $element, string|int ...$arguments): StylesValueObject)|null $callback
+     * @return Style
+     */
+    public static function create(string $name, Closure $callback = null): Style
+    {
+        self::$storage[$name] = $style = new Style(
+            $callback ?? static fn (StylesValueObject $styles) => $styles
+        );
+
+        return $style;
+    }
+
+    /**
+     * Removes all existing styles.
+     */
+    public static function flush(): void
+    {
+        self::$storage = [];
+    }
+
+    /**
+     * Checks a style with the given name exists.
+     */
+    public static function has(string $name): bool
+    {
+        return array_key_exists($name, self::$storage);
+    }
+
+    /**
+     * Gets the style with the given name.
+     */
+    public static function get(string $name): Style
+    {
+        return self::$storage[$name];
+    }
+}