[skip ci] Build helpers on push

letter.tex

@@ -30,12 +30,12 @@
 
 % Define new letter header
 \setkomavar{firsthead}{
-    \null\hfill
-    \parbox[t][\headheight][t]{4cm}{%
-        \vspace*{2cm}
+	\null\hfill
+	\parbox[t][\headheight][t]{4cm}{%
+		\vspace*{2cm}
 
-        \usekomavar{fromname} \newline
-        \usekomavar{fromaddress}  \newline
-        \usekomavar{fromplace}
-    }
+		\usekomavar{fromname} \newline
+		\usekomavar{fromaddress}  \newline
+		\usekomavar{fromplace}
+	}
 }%