HackStudio: Clear embedded terminal upon opening a different project

Author: https://github.com/donaghylennon
Commit: 971a5a70d1
Pull-request: https://github.com/SerenityOS/serenity/pull/9185
Reviewed-by: https://github.com/itamar8910 ✅

Userland/DevTools/HackStudio/HackStudioWidget.cpp

@@ -200,6 +200,7 @@ void HackStudioWidget::open_project(const String& root_path)
         m_open_files_vector.clear();
         add_new_editor(*m_editors_splitter);
         m_todo_entries_widget->clear();
+        m_terminal_wrapper->clear_including_history();
     }
     m_project = Project::open_with_root_path(root_path);
     VERIFY(m_project);