\documentclass[a4paper]{article}

\input{star-wars-formatting.sty}

\begin{document}
    \setcounter{tocdepth}{1}
    {\tn\selectfont\tableofcontents}
    \newpage

    \input{cheat sheet/cheatsheet.tex}
    \input{species/species.tex}
    \input{gear/gear.tex}
    \input{talent trees/talent-trees.tex}
    \input{force powers/force-powers.tex}
\end{document}