fix: remove duplicate LaTeX imports, add row bounds safety, improve error messaging (#252)

cover_letters/OpenFonts/cover.cls

@@ -1,5 +1,5 @@
 % Intro Options
-\ProvidesClass{deedy-resume-openfont}[2014/04/30 CV class]
+\ProvidesClass{cover}[2024/04/30 Cover letter class]
 \NeedsTeXFormat{LaTeX2e}
 \DeclareOption{print}{\def\@cv@print{}}
 \DeclareOption*{%

cover_letters/cover.cls

@@ -1,5 +1,5 @@
 % Intro Options
-\ProvidesClass{deedy-resume-openfont}[2014/04/30 CV class]
+\ProvidesClass{cover}[2024/04/30 Cover letter class]
 \NeedsTeXFormat{LaTeX2e}
 \DeclareOption{print}{\def\@cv@print{}}
 \DeclareOption*{%
@@ -21,20 +21,16 @@
 \renewcommand\refname{\vskip -1.5cm}
 
 % Color definitions
-\usepackage[usenames,dvipsnames]{xcolor} 
-\definecolor{date}{HTML}{666666} 
-\definecolor{primary}{HTML}{2b2b2b} 
+\definecolor{date}{HTML}{666666}
+\definecolor{primary}{HTML}{2b2b2b}
 \definecolor{headings}{HTML}{6A6A6A}
 \definecolor{subheadings}{HTML}{333333}
 
 % Set main fonts
-\usepackage{fontspec}
 \setmainfont[Color=primary, Path = OpenFonts/fonts/lato/,BoldItalicFont=Lato-RegIta,BoldFont=Lato-Reg,ItalicFont=Lato-LigIta]{Lato-Lig}
 \setsansfont[Scale=MatchLowercase,Mapping=tex-text, Path = OpenFonts/fonts/raleway/]{Raleway-ExtraLight}
 
 % Date command
-\usepackage[absolute]{textpos}
-% \usepackage[UKenglish]{isodate}
 \setlength{\TPHorizModule}{1mm}
 \setlength{\TPVertModule}{1mm}
 \newcommand{\lastupdated}{\begin{textblock}{60}(155,5)
@@ -56,9 +52,8 @@ Last Updated on \today
 \vspace{0pt}
 }
 
-% Section seperators 
-\usepackage{titlesec}
-\titlespacing{\section}{0pt}{0pt}{0pt} 
+% Section seperators
+\titlespacing{\section}{0pt}{0pt}{0pt}
 \titlespacing{\subsection}{0pt}{0pt}{0pt}
 \newcommand{\sectionsep}{\vspace{8pt}}