Fixes: 1) Update `search_model` to `None` to avoid incorrect search configurations;
Extra: 1) Remove deprecated user menu links for a cleaner interface; 2) Minor adjustments for consistency in string formatting.
Fixes: 1) Remove unused dependency `django-daisy` from `pyproject.toml` and `poetry.lock`;
Extra: 1) Upgrade `lxml` to version 6.0.0; 2) Upgrade `click-plugins` and `jupyterlab` to newer minor versions.
