settings.sty

\usepackage[top=2.5cm, bottom=2.5cm, left=2.5cm, right=4cm]{geometry}
\usepackage[ngerman]{babel}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{amsmath,amsthm,amsfonts,amssymb,amscd, color, comment, graphicx, environ}
\usepackage{float, lastpage, enumerate, fancyhdr, listings, sectsty, thmtools, shadethm, hyperref, mathrsfs}
\usepackage[babel=true,strict=true,german=quotes,threshold=1]{csquotes}
% \renewcommand\mkblockquote[4]{\leavevmode\llap{,,}#1#2#3``#4} Only use if you want all blockquotes in quotation marks
\usepackage[onehalfspacing]{setspace}
\usepackage[dvipsnames]{xcolor}
\usepackage[framemethod=TikZ]{mdframed}
\usepackage[shortlabels]{enumitem}
\hypersetup{
    colorlinks,
    citecolor=blue,
    linkcolor=black,
    filecolor=magenta,      
    urlcolor=blue,
}
\usepackage[scaled]{helvet}

% If bibliography does not work, open your terminal and type
% biber --cache 
% delete the folder that is shown
\usepackage[
backend=biber,
style=authoryear-icomp,
maxbibnames=9,
maxcitenames=2,
sortcites=true
]{biblatex}
\addbibresource{bibliography.bib}
\ExecuteBibliographyOptions{maxcitenames=2,mincitenames=2}
\DefineBibliographyStrings{german}{urlseen = {Abgerufen am}, andothers = {et al\adddot}}
\DeclareFieldFormat{url}{Verfügbar unter:\addcolon\space\url{#1}}
\DeclareFieldFormat{urldate}{\mkbibbrackets{\bibstring{urlseen}\space#1}}

\usepackage[nottoc,numbib]{tocbibind}
\pagestyle{fancy}
\fancyhf{}
\renewcommand{\headrulewidth}{0pt}
\headheight 35pt
\pagenumbering{arabic}
\lhead{}
\rhead{}
\lfoot{}
\rfoot{\small\thepage}
\cfoot{}
\renewcommand\familydefault{\sfdefault}
\urlstyle{same}