WIP: Update recipe for Contao 5.x

[bytehead]

Q	A
License	MIT
Packagist	https://packagist.org/packages/contao/core-bundle

[github-actions]

Thanks for the PR 😍

How to test these changes in your application

1. Define the SYMFONY_ENDPOINT environment variable:

   # On Unix-like (BSD, Linux and macOS)
   export SYMFONY_ENDPOINT=https://raw.githubusercontent.com/symfony/recipes-contrib/flex/pull-1760/index.json
   # On Windows
   SET SYMFONY_ENDPOINT=https://raw.githubusercontent.com/symfony/recipes-contrib/flex/pull-1760/index.json

2. Install the package(s) related to this recipe:

   composer req symfony/flex
   composer req 'contao/core-bundle:^5.0'

3. Don't forget to unset the SYMFONY_ENDPOINT environment variable when done:

   # On Unix-like (BSD, Linux and macOS)
   unset SYMFONY_ENDPOINT
   # On Windows
   SET SYMFONY_ENDPOINT=

Diff between recipe versions

In order to help with the review stage, I'm in charge of computing the diff between the various versions of patched recipes.
I'm going keep this comment up to date with any updates of the attached patch.

contao/core-bundle

4.6 vs 5.0

diff --git a/contao/core-bundle/4.6/config/packages/contao_core.yaml b/contao/core-bundle/5.0/config/packages/contao_core.yaml
index 8e665be6..8969b8f2 100644
--- a/contao/core-bundle/4.6/config/packages/contao_core.yaml
+++ b/contao/core-bundle/5.0/config/packages/contao_core.yaml
@@ -1,3 +1,10 @@
 # See https://github.com/contao/core-bundle
 contao:
-    web_dir: "%kernel.project_dir%/public"
+    preview_script: '/preview.php'
+    upload_path: files
+    csrf_token_name: contao_csrf_token
+    pretty_error_screens: true
+
+when@dev:
+    contao:
+        pretty_error_screens: false
diff --git a/contao/core-bundle/4.6/post-install.txt b/contao/core-bundle/5.0/post-install.txt
index 5cb918eb..0bbf4653 100644
--- a/contao/core-bundle/4.6/post-install.txt
+++ b/contao/core-bundle/5.0/post-install.txt
@@ -6,7 +6,4 @@
   * Edit your config/security.yaml file and include all the
     necessary providers, firewalls and access control sections.
 
-  * Complete the installation by opening the /contao/install route
-    in your browser.
-
-Documentation: https://github.com/contao/core-bundle
+Documentation: https://docs.contao.org/dev/