bold labels in Bibliografieverzeichnis about biblatex-archaeologie HOT 4 CLOSED

\documentclass{scrartcl}
\usepackage[backend=biber,style=archaeologie]{biblatex}
\addbibresource{archaeologie-examples.bib}

\makeatletter
\DeclareBibliographyOption[string]{biblabel}{%
  \ifcsundef{archblx@biblabel@#1}
    {\PackageError{biblatex-archaeologie}
       {Unknown value '#1' for option 'biblabel'.}
       {Unknown value '#1' for option 'biblabel'.\MessageBreak
        Possible values are 'plain', 'bold', 'brackets', 'parens'.}%
     \csdef{archblx@biblabel}{\csuse{archblx@biblabel@plain}}}
    {\csdef{archblx@biblabel}{\csuse{archblx@biblabel@#1}}}}
    
\let\archblx@biblabel@plain\@firstofone
\def\archblx@biblabel@bold{\mkbibbold}
\def\archblx@biblabel@brackets{\mkbibbrackets}
\def\archblx@biblabel@parens{\mkbibparens}

\DeclareFieldFormat{bibcitelabel}{\csuse{archblx@biblabel}{#1}}

\renewbibmacro{labelwidthbib}{%
  \begingroup
    \DeclareFieldFormat{bibhyperref}{##1}%
    \csuse{blx@hook@cite}%
    \csuse{blx@hook@citekey}%
    \defcounter{maxnames}{\blx@maxcitenames}%
    \printtext[bibcitelabel]{\usebibmacro{cite}}%
  \endgroup
}
\makeatletter

\ExecuteBibliographyOptions{biblabel=bold}

\usepackage{hyperref}
\begin{document}
  \footcite{Mann2011}
  \printbibliography
\end{document}