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/ProxyArrayAccessToProperties.php

@@ -1,62 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace League\Flysystem;
-
-use RuntimeException;
-
-/**
- * @internal
- */
-trait ProxyArrayAccessToProperties
-{
-    private function formatPropertyName(string $offset): string
-    {
-        return str_replace('_', '', lcfirst(ucwords($offset, '_')));
-    }
-
-    /**
-     * @param mixed $offset
-     *
-     * @return bool
-     */
-    public function offsetExists($offset): bool
-    {
-        $property = $this->formatPropertyName((string) $offset);
-
-        return isset($this->{$property});
-    }
-
-    /**
-     * @param mixed $offset
-     *
-     * @return mixed
-     */
-    #[\ReturnTypeWillChange]
-    public function offsetGet($offset)
-    {
-        $property = $this->formatPropertyName((string) $offset);
-
-        return $this->{$property};
-    }
-
-    /**
-     * @param mixed $offset
-     * @param mixed $value
-     */
-    #[\ReturnTypeWillChange]
-    public function offsetSet($offset, $value): void
-    {
-        throw new RuntimeException('Properties can not be manipulated');
-    }
-
-    /**
-     * @param mixed $offset
-     */
-    #[\ReturnTypeWillChange]
-    public function offsetUnset($offset): void
-    {
-        throw new RuntimeException('Properties can not be manipulated');
-    }
-}