Use only available octicons on website

[MarcSkovMadsen]

I experience relatively often that the Octicon icon I chose for the docs does not display. If I pick another it does.

Instead it looks like the below from the dev docs.

I believe the cause is an old version of the Octicon icons. Please fix.

[philippjfr]

I think you are simply unaware where we get these icons from: what is supported comes from sphinx-design, here is the list of supported icons: https://sphinx-design.readthedocs.io/en/latest/badges_buttons.html#octicon-icons

The ones you are using are not listed there.

[MarcSkovMadsen]

I was using https://primer.style/foundations/icons/