reference to "_templates/prev-next.html" lost in jupyter-book under sphinx 5.1.1

[epogrebnyak]

https://github.com/executablebooks/sphinx-book-theme/blob/ed7bbd0ebc9c7c30a773b4ffb4f573dda40bbd0d/src/sphinx_book_theme/theme/sphinx_book_theme/sections/footer-article.html#L2-L3

I know Sphinx 5 is not yet supported, but experimentally with Sphinx 5.1.1 there is some bug when trying to build new sample book with jb create and jb build the reference to pydata theme gets lost:

File "/usr/local/lib/python3.8/dist-packages/sphinx_book_theme/theme/sphinx_book_theme/sections/footer-article.html", line 3, in top-level template code
    {% include "_templates/prev-next.html" %}
  File "/usr/local/lib/python3.8/dist-packages/sphinx/jinja2glue.py", line 210, in get_source
    raise TemplateNotFound(template)
jinja2.exceptions.TemplateNotFound: _templates/prev-next.html

Original issue at https://github.com/executablebooks/jupyter-book/issues/1805

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