feat(latex): add appendix package and customize appendix names for improved formatting

latex/preamble/appendix.tex

@@ -8,6 +8,10 @@
 \usepackage{enumitem}
 \usepackage{pdfpages}
 \usepackage{caption}
+\usepackage[titletoc,toc,page]{appendix}
+
+\renewcommand{\appendixtocname}{Lampiran}
+\renewcommand{\appendixpagename}{\MakeUppercase{Lampiran}}
 
 \definecolor{Gray}{gray}{0.95}
 \newcolumntype{a}{>{\columncolor{Gray}}p}