Biblatex: website citation is italicized and uses title instead of author when removing "n.d."

I'm trying to cite a website using the authoryear style with BibLaTeX.

\documentclass{article}
\usepackage[utf8]{inputenc}

\begin{filecontents}{ref.bib}
@online{nanopore,
    author    = "{Oxford Nanopore Technologies}",
    title     = "Oxford Nanopore Technologies Github",
    url       = "https://github.com/nanoporetech"
}
\end{filecontents}


\usepackage[
backend=biber,
style=authoryear,
sorting=nyt,
citestyle=authoryear,
maxbibnames=99
]{biblatex}

\addbibresource{ref.bib}

\begin{document}

\parencite{nanopore}

\end{document}

This gives me

which is fine except I want to remove the "n.d.", so then I do this to remove it:

\DeclareLabeldate[online]{%
  \field{date}
  \field{year}
  \field{eventdate}
  \field{origdate}
  \field{urldate}
}

And then my citation changes, so 1) it prints the title instead of the author, and 2) the citation is italicizes (which is probably because it's printing the title instead of author).

Any idea why this is happening and how I can prevent it?

Thanks in advance!

EDIT: for @samcarter_is_at_topanswers.xyz

You could change the translation for "n.d." for the online type:

\documentclass{article}
\usepackage[utf8]{inputenc}

\begin{filecontents}{ref.bib}
@online{nanopore,
    author    = "{Oxford Nanopore Technologies}",
    title     = "Oxford Nanopore Technologies Github",
    url       = "https://github.com/nanoporetech"
}
\end{filecontents}


\usepackage[
backend=biber,
style=authoryear,
sorting=nyt,
citestyle=authoryear,
maxbibnames=99,
]{biblatex}

\DefineBibliographyStrings{english}{%
nodate = {\ifboolexpr{test{\ifentrytype{online}}}{\unspace}{n\adddot d\adddot}},
}

\addbibresource{ref.bib}

\begin{document}

\parencite{nanopore}

\end{document}