updated all config install files from d10

config/install/devel.settings.yml

@@ -1,3 +1,4 @@
+langcode: fr
 page_alter: false
 raw_names: false
 error_handlers:
@@ -5,4 +6,4 @@ error_handlers:
 rebuild_theme: false
 debug_mail_file_format: '%to-%subject-%datetime.mail.txt'
 debug_mail_directory: 'temporary://devel-mails'
-devel_dumper: default
+devel_dumper: var_dumper