fix: add syntax coloring for short and Short types

Author: aj-m

java/keywords.txt

@@ -239,6 +239,7 @@ Float	KEYWORD5
 Integer	KEYWORD5
 HashMap	KEYWORD5	HashMap
 PrintWriter	KEYWORD5	PrintWriter
+Short	KEYWORD5	Short
 String	KEYWORD5	String
 StringBuffer	KEYWORD5
 StringBuilder	KEYWORD5
@@ -251,6 +252,7 @@ double	KEYWORD5	double
 float	KEYWORD5	float
 int	KEYWORD5	int
 long	KEYWORD5	long
+short	KEYWORD5	short
 var	KEYWORD5