update nerd font and add script

any/scripts/.local/bin/utf16-2-utf8.sh

@@ -0,0 +1,2 @@
+#!/bin/bash
+printf "$(python -c "print('$1'.encode('utf-16', 'surrogatepass').decode('utf-16').encode('utf-8'))" | perl -pe "s/(^b|')//g")"

any/vi/.exrc

@@ -4,7 +4,3 @@ set number
 set showmode
 set showmatch
 set autoindent
-
-" Make PgUp and PgDown keys work.
-map ^[[5~ ^B
-map ^[[6~ ^F