Update Drupal configuration files

Signed-off-by: Oliver Davies <oliver@oliverdavies.uk>

drupal-nix-flake/.gitignore

@@ -8,6 +8,7 @@
 /phpcs.xml
 /phpunit.xml
 /phpstan.neon
+/recipes/README.txt
 /vendor/
 
 /web/.csslintrc
@@ -21,10 +22,10 @@
 /web/core/
 /web/example.gitignore
 /web/index.php
+/web/libraries/
 /web/modules/README.txt
 /web/modules/contrib/
-/web/profiles/README.txt
-/web/profiles/contrib/
+/web/profiles/
 /web/robots.txt
 /web/sites/*/files/
 /web/sites/*/private/