polybar: update to 3.5.3.

[pbui]

No description provided.

[ericonr]

Apparently you can now build docs for polybar without having git available. Want to do that? (I don't know if it's useful)

[pbui]

@ericonr Done. It looks like there should be a man page for polybar now.

[ericonr]

Is

/usr/share/doc/polybar/.buildinfo
/usr/share/doc/polybar/_sources/dev/packaging.rst.txt
/usr/share/doc/polybar/_sources/dev/release-workflow.rst.txt
/usr/share/doc/polybar/_sources/index.rst.txt
/usr/share/doc/polybar/_sources/man/polybar.1.rst.txt
/usr/share/doc/polybar/_sources/man/polybar.5.rst.txt
/usr/share/doc/polybar/_sources/user/actions.rst.txt
/usr/share/doc/polybar/_static/alabaster.css
/usr/share/doc/polybar/_static/basic.css
/usr/share/doc/polybar/_static/custom.css
/usr/share/doc/polybar/_static/doctools.js
/usr/share/doc/polybar/_static/documentation_options.js
/usr/share/doc/polybar/_static/file.png
/usr/share/doc/polybar/_static/jquery-3.5.1.js
/usr/share/doc/polybar/_static/jquery.js
/usr/share/doc/polybar/_static/language_data.js
/usr/share/doc/polybar/_static/minus.png
/usr/share/doc/polybar/_static/plus.png
/usr/share/doc/polybar/_static/pygments.css
/usr/share/doc/polybar/_static/searchtools.js
/usr/share/doc/polybar/_static/underscore-1.3.1.js
/usr/share/doc/polybar/_static/underscore.js
/usr/share/doc/polybar/config
/usr/share/doc/polybar/dev/packaging.html
/usr/share/doc/polybar/dev/release-workflow.html
/usr/share/doc/polybar/genindex.html
/usr/share/doc/polybar/index.html
/usr/share/doc/polybar/man/polybar.1.html
/usr/share/doc/polybar/man/polybar.5.html
/usr/share/doc/polybar/objects.inv
/usr/share/doc/polybar/search.html
/usr/share/doc/polybar/searchindex.js
/usr/share/doc/polybar/user/actions.html

too much? I'm not sure we need to ship that part. The man pages are a good addition, though.

[pbui]

@ericonr OK, I've modified the template to remove the files under /usr/share/doc/polybar.