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/psr/container/src/ContainerExceptionInterface.php

@@ -1,12 +0,0 @@
-<?php
-
-namespace Psr\Container;
-
-use Throwable;
-
-/**
- * Base interface representing a generic exception in a container.
- */
-interface ContainerExceptionInterface extends Throwable
-{
-}

docker/streamline-src/vendor/psr/container/src/ContainerInterface.php

@@ -1,36 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace Psr\Container;
-
-/**
- * Describes the interface of a container that exposes methods to read its entries.
- */
-interface ContainerInterface
-{
-    /**
-     * Finds an entry of the container by its identifier and returns it.
-     *
-     * @param string $id Identifier of the entry to look for.
-     *
-     * @throws NotFoundExceptionInterface  No entry was found for **this** identifier.
-     * @throws ContainerExceptionInterface Error while retrieving the entry.
-     *
-     * @return mixed Entry.
-     */
-    public function get(string $id);
-
-    /**
-     * Returns true if the container can return an entry for the given identifier.
-     * Returns false otherwise.
-     *
-     * `has($id)` returning true does not mean that `get($id)` will not throw an exception.
-     * It does however mean that `get($id)` will not throw a `NotFoundExceptionInterface`.
-     *
-     * @param string $id Identifier of the entry to look for.
-     *
-     * @return bool
-     */
-    public function has(string $id): bool;
-}

docker/streamline-src/vendor/psr/container/src/NotFoundExceptionInterface.php

@@ -1,10 +0,0 @@
-<?php
-
-namespace Psr\Container;
-
-/**
- * No entry was found in the container.
- */
-interface NotFoundExceptionInterface extends ContainerExceptionInterface
-{
-}