[closed] Abstände vor \section ändern

\documentclass[12pt,twoside,BCOR=12mm,DIV=calc]{scrbook}
\usepackage{geometry}
\usepackage{ngerman}
\usepackage{libertine}
\usepackage{lato}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage[ngerman]{babel}
\usepackage[sc]{mathpazo}
\usepackage{pifont}
\usepackage{latexsym}
\usepackage{graphicx}
\usepackage{color}
\usepackage[]{ragged2e}
\usepackage{nicefrac}
% Kopfzeilen
\usepackage{fancyhdr}
\pagestyle{fancy}
\fancyhf{}
\renewcommand{\headrulewidth}{0pt}
%Zeilenabstand 1,5 Zeilen, MS Office - Dimensionierung
\usepackage{setspace}
\makeatletter
\newcommand{\MSonehalfspacing}{%
  \setstretch{1.44}%  default
  \ifcase \@ptsize \relax % 10pt
    \setstretch {1.448}%
  \or % 11pt
    \setstretch {1.399}%
  \or % 12pt
    \setstretch {1.433}%
  \fi
}
\newcommand{\MSdoublespacing}{%
  \setstretch {1.92}%  default
  \ifcase \@ptsize \relax % 10pt
    \setstretch {1.936}%
  \or % 11pt
    \setstretch {1.866}%
  \or % 12pt
    \setstretch {1.902}%
  \fi
}
\MSonehalfspacing
\makeatother
% Überschriften
\usepackage{titlesec}
\titleformat{\chapter}[hang]{\Large}{\thechapter\quad}{0pt}{}
\titleformat{\section}[hang]{\large\bfseries}{\thesection\quad}{0pt}{}
\titleformat{\subsection}[hang]{\bfseries}{\thesubsection\quad}{0pt}{}
\titleformat{\subsubsection}[hang]{\bfseries}{\thesubsubsection\quad}{0pt}{}
\titleformat{\paragraph}[hang]{\bfseries}{\theparagraph\quad}{0pt}{}
\titlespacing{\chapter}{0pt}{35pt}{20pt}
% Inhaltsverzeichnis
\usepackage{tocstyle}
% Fußnoten
\deffootnote[1.3em]{1.3em}{0em}{%
\makebox[1.3em][l]{\thefootnotemark}} 
\geometry{footnotesep=0.7cm}
\begin{document}

\addtocontents{toc}{\protect\thispagestyle{empty}}
\tableofcontents

\begin{singlespace}
\chapter[\textsc{Einleitung}]{\textsc{Einleitung}}
\end{singlespace}

\fancyhead[LE]{\thepage\hspace*{\fill}\thechapter \enskip \textsc{Einleitung}}
\fancyhead[RO]{\thechapter \enskip \textsc{Einleitung}\hspace*{\fill}\thepage}
\fancyfoot[RO, LE] {\thepage}
\thispagestyle{empty}

\noindent Lorem ipsum dolor sit amet, consetetur sadipscing elitr,
sed diam nonumy eirmod tempor invidunt ut labore et do-
lore magna aliquyam erat, sed diam voluptua. At vero eos
et accusam et justo duo dolores et ea rebum. Stet clita kasd
gubergren, no\footnote{sea takimata sanctus est Lorem ipsum dolor
sit amet. Lorem ipsum dolor sit amet, consetetur sadipscing
elitr, sed diam nonumy eirmod tempor invidunt ut labore
et dolore magna aliquyam erat, sed diam voluptua.
At vero}
eos et accusam et justo duo dolores et ea rebum. Stet clita
kasd gubergren, no sea takimata sanctus est Lorem ipsum
dolor sit amet. Lorem ipsum dolor sit amet, consetetur sa-
dipscing elitr, sed diam nonumy eirmod tempor invidunt ut
labore et dolore magna aliquyam erat, sed diam voluptua.
At vero eos et accusam et justo duo dolores et ea rebum.
Stet clita kasd gubergren, no sea takimata sanctus est Lo-
rem ipsum dolor sit amet. Lorem ipsum dolor sit amet,

\begin{singlespace}
 \section{Unterabschnitt}
\end{singlespace}

At vero
eos et accusam et justo duo dolores et ea rebum. Stet clita
kasd gubergren, no sea takimata sanctus est Lorem ipsum
dolor sit amet. Lorem ipsum dolor sit amet, consetetur sa-
dipscing elitr, sed diam nonumy eirmod tempor invidunt ut
labore et dolore magna aliquyam erat, sed diam voluptua.
At vero eos et accusam et justo duo dolores et ea rebum.
Stet clita kasd gubergren, no sea takimata sanctus est Lo-
rem ipsum dolor sit amet. Lorem ipsum dolor sit amet,

\begin{singlespace}
 \subsection{UnterUnterabschnitt}
\end{singlespace}

consetetur sadipscing elitr, sed diam nonumy eirmod tem-
por invidunt ut labore et dolore magna aliquyam erat, sed
diam voluptua. At vero eos et accusam et justo duo dolo-
res et ea rebum. Stet clita kasd gubergren, no sea Lorem
ipsum dolor sit amet, consetetur sadipscing elitr,
sed diam nonumy eirmod tempor invidunt ut labore et do-
lore magna aliquyam erat, sed diam voluptua. At vero eos
et accusam et justo duo dolores et ea rebum. Stet clita kasd
gubergren, no sea takimata sanctus est Lorem ipsum dolor
sit amet. Lorem ipsum dolor sit amet, consetetur sadipscing
elitr, sed diam nonumy eirmod tempor invidunt ut labore
et dolore magna aliquyam erat, sed diam voluptua. At vero
eos et accusam et justo duo dolores et ea rebum. Stet clita
kasd gubergren, no sea takimata sanctus est Lorem ipsum

\end{document}