fix: pin footnotes to the bottom

misc/packages.tex

@@ -19,6 +19,7 @@
 \usepackage{custom-packages/greek-enumerate}	% Greek enumeration for ordered item lists
 \usepackage{float}								% For \begin{figure}[H]
 \usepackage[font={footnotesize, it}]{caption}	% For captions under figures
+\usepackage[bottom]{footmisc}
 \DeclareCaptionLabelFormat{AppendixBTables}{Πίνακας B.#2}
 \usepackage{tabularx}							% Support for break lines inside table cells
 \usepackage{multirow, booktabs}					% Useful table styling commands