Fix the opening of notebooks in a new tab when using the `JupyterLite`, `NotebookLite`, and `Voici` directives#220

agriyakhetarpal merged 2 commits intojupyterlite:mainjupyterlite/jupyterlite-sphinx:mainfrom

agriyakhetarpal:fix/new-tab-for-jupyterlite-directiveagriyakhetarpal/jupyterlite-sphinx:fix/new-tab-for-jupyterlite-directiveCopy head branch name to clipboard