HackStudio: Add a "document dirty" indicator to the EditorWrapper

Author: https://github.com/itamar8910
Commit: 672b14b70d
Pull-request: https://github.com/SerenityOS/serenity/pull/6779
Reviewed-by: https://github.com/IdanHo
Reviewed-by: https://github.com/awesomekling

Userland/DevTools/HackStudio/HackStudioWidget.cpp

@@ -552,7 +552,7 @@ NonnullRefPtr<GUI::Action> HackStudioWidget::create_save_action()
         if (active_file().is_empty())
             return;
 
-        current_editor().write_to_file(active_file());
+        current_editor_wrapper().save();
 
         if (m_git_widget->initialized())
             m_git_widget->refresh();