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/symfony/polyfill-php80/README.md

@@ -1,25 +0,0 @@
-Symfony Polyfill / Php80
-========================
-
-This component provides features added to PHP 8.0 core:
-
-- [`Stringable`](https://php.net/stringable) interface
-- [`fdiv`](https://php.net/fdiv)
-- [`ValueError`](https://php.net/valueerror) class
-- [`UnhandledMatchError`](https://php.net/unhandledmatcherror) class
-- `FILTER_VALIDATE_BOOL` constant
-- [`get_debug_type`](https://php.net/get_debug_type)
-- [`PhpToken`](https://php.net/phptoken) class
-- [`preg_last_error_msg`](https://php.net/preg_last_error_msg)
-- [`str_contains`](https://php.net/str_contains)
-- [`str_starts_with`](https://php.net/str_starts_with)
-- [`str_ends_with`](https://php.net/str_ends_with)
-- [`get_resource_id`](https://php.net/get_resource_id)
-
-More information can be found in the
-[main Polyfill README](https://github.com/symfony/polyfill/blob/main/README.md).
-
-License
-=======
-
-This library is released under the [MIT license](LICENSE).