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-intl-grapheme/README.md

@@ -1,31 +0,0 @@
-Symfony Polyfill / Intl: Grapheme
-=================================
-
-This component provides a partial, native PHP implementation of the
-[Grapheme functions](https://php.net/intl.grapheme) from the
-[Intl](https://php.net/intl) extension.
-
-- [`grapheme_extract`](https://php.net/grapheme_extract): Extract a sequence of grapheme
-  clusters from a text buffer, which must be encoded in UTF-8
-- [`grapheme_stripos`](https://php.net/grapheme_stripos): Find position (in grapheme units)
-  of first occurrence of a case-insensitive string
-- [`grapheme_stristr`](https://php.net/grapheme_stristr): Returns part of haystack string
-  from the first occurrence of case-insensitive needle to the end of haystack
-- [`grapheme_strlen`](https://php.net/grapheme_strlen): Get string length in grapheme units
-- [`grapheme_strpos`](https://php.net/grapheme_strpos): Find position (in grapheme units)
-  of first occurrence of a string
-- [`grapheme_strripos`](https://php.net/grapheme_strripos): Find position (in grapheme units)
-  of last occurrence of a case-insensitive string
-- [`grapheme_strrpos`](https://php.net/grapheme_strrpos): Find position (in grapheme units)
-  of last occurrence of a string
-- [`grapheme_strstr`](https://php.net/grapheme_strstr): Returns part of haystack string from
-  the first occurrence of needle to the end of haystack
-- [`grapheme_substr`](https://php.net/grapheme_substr): Return part of a string
-
-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).