refactor(symfony-string): extract symfony/string into the shirabe-symfony-string crate

Move `Symfony\Component\String` out of shirabe-external-packages and into
its own crate, so the path is `shirabe_symfony_string::ByteString`
instead of `shirabe_external_packages::symfony::string::ByteString`.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

2 files changed, 2 insertions, 2 deletions

diff --git a/crates/shirabe-external-packages/src/symfony/console/helper/helper.rs b/crates/shirabe-external-packages/src/symfony/console/helper/helper.rs
index 20103df8..471a8d8a 100644
--- a/crates/shirabe-external-packages/src/symfony/console/helper/helper.rs
+++ b/crates/shirabe-external-packages/src/symfony/console/helper/helper.rs
@@ -2,8 +2,8 @@
 
 use crate::symfony::console::formatter::output_formatter_interface::OutputFormatterInterface;
 use crate::symfony::console::helper::helper_set::HelperSet;
-use crate::symfony::string::unicode_string::UnicodeString;
 use shirabe_php_shim::php_regex;
+use shirabe_symfony_string::unicode_string::UnicodeString;
 
 /// Helper is the base class for all helper classes.
 #[derive(Debug, Default)]
diff --git a/crates/shirabe-external-packages/src/symfony/console/helper/question_helper.rs b/crates/shirabe-external-packages/src/symfony/console/helper/question_helper.rs
index 8ec8d15c..91fb5bf0 100644
--- a/crates/shirabe-external-packages/src/symfony/console/helper/question_helper.rs
+++ b/crates/shirabe-external-packages/src/symfony/console/helper/question_helper.rs
@@ -18,8 +18,8 @@ use crate::symfony::console::output::output_interface::OutputInterface;
 use crate::symfony::console::question::ChoiceQuestion;
 use crate::symfony::console::question::QuestionInterface;
 use crate::symfony::console::terminal::Terminal;
-use crate::symfony::string::s;
 use shirabe_php_shim::PhpMixed;
+use shirabe_symfony_string::s;
 
 /// The QuestionHelper class provides helpers to interact with the user.
 #[derive(Debug, Default)]