\documentclass[a4paper,12pt,twoside]{report}
\usepackage[left=2cm,right=2cm,top=2cm,bottom=3cm]{geometry}
\include{thesis.preamble}
\usepackage{graphicx}
\usepackage{enumitem}
\usepackage{hyperref}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{multirow}
\usepackage{pdflscape}
%\usepackage{longtable} % for 'longtable' environment
%\usepackage{pdflscape} % for 'landscape' environment
\usepackage{adjustbox}
\usepackage{multirow}
\newcommand{\xdownarrow}[1]{%
{\left\downarrow\vbox to #1{}\right.\kern-\nulldelimiterspace}
}
\hypersetup{
colorlinks=true,
linkcolor=blue,
filecolor=blue,
urlcolor=blue,
citecolor=blue,
pdftitle={Thesis},
pdfpagemode=FullScreen,
}
\begin{document}
\title{\LARGE {\bf Title of Thesis}\\
\vspace*{6mm}
}
\author{Name of Author}
\submitdate{October 2021}
\normallinespacing
\maketitle
\preface
\input{abstract/abstract}
\input{acknowledgements/acknowledgements}
\input{dedication/dedication}
\body
\input{1-introduction/introduction}
\input{2-background/background}
\input{3-literature_review/literature_review}
\input{4-methodology/methodology}
\input{5-experiments_and_results/experiments_and_results}
\input{6-conclusions/conclusions}
\appendix
% appendices come here
\addcontentsline{toc}{chapter}{Bibliography}
\bibliographystyle{abbrv}
\bibliography{bibliography/bibliography}
\end{document}