fix(documentclass): adjust figure number width and remove one-and-a-half spacing

latex/main.tex

@@ -25,6 +25,7 @@
 \begin{document}
 \frontmatter
 % \maketitle
+\onehalfspacing
 \include{frontmatter/maketitle}
 \include{frontmatter/maketitle_secondary}
 \include{frontmatter/approval}
@@ -42,6 +43,7 @@
 % \pagestyle{fancyplain}
 \mainmatter
 % Include content
+\onehalfspacing
 \include{chapters/id/01_introduction}
 \include{chapters/id/02_literature_review/index}
 \include{chapters/id/03_methodology/index}